vciy

CVE-2022-27926

INDEX BUILT · 2026-09-20

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A reflected cross-site scripting (XSS) vulnerability in the /public/launchNewWindow.jsp component of Zimbra Collaboration (aka ZCS) 9.0 allows…

CVE-2022-279263 of 4 sources documented this
63

rank 63 = 40 + 15 + 0 + 2 + 6

rank@v1 · this cycle

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.17634 · CISA KEV listed  ·  without this subject the record ranks 23

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 6.1, from NVD  ·  without this subject the record ranks 48

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 63

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 61

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 57

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$377,000over the next 30 days, if this record is yours
Movement+$27,100on 2023-10-01, the last material move, 2 years, 11 months before this reading
Basisassumeda published average, not your estate

$377,000 = $4.99M incident cost x 0.42806422275080447 exposure x 0.17634 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.17634EPSSKEV · LISTED
Severity6.1 MEDIUMreceipt
Harmpartial impactreceipt
Exploitationin the wild · KEVreceipt
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-06-15, 81 days at 0.18, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

QNAP Systems Inc.Cisco AdaptiveCVE-2018-6882CVE-2024-27443CVE-2024-37383CVE-2023-3758027926

This record is one instance of CWE-79, improper neutralization of input during web page generation ('cross-site scripting'). The index holds 47893 prior instances of this class, 31 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · no privileges required · user interaction required · low attack complexityreceipt
ImpactPartial confidentiality and integrity loss, with impact beyond the vulnerable componentreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')receipt
Published consequencesCWE-79: Access Control, Confidentiality: Bypass Protection Mechanism, Read Application Data; Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands…[email protected]
Ransomware campaign useUnknown to CISAreceipt

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed inNo fix version in held sources, as the index stood on 4 Sep 2026.
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.
CISA remediation statusoverdue since 2023-04-24receipt
CISA required actionApply updates per vendor instructions.receipt
Published to CISA KEV348 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2023-04-03.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed2023-04-03receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD6.1 MEDIUMreceipt
Exploit probability0.17634 · top 3% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymitrereceipt
Recorded changes81 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesSynacor zimbra collaboration suitereceipt
Published rangessynacor zimbra collaboration suite 9.0.0receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

A reflected cross-site scripting (XSS) vulnerability in the /public/launchNewWindow.jsp component of Zimbra Collaboration (aka ZCS) 9.0 allows unauthenticated attackers to execute arbitrary web script or HTML via request parameters. receipt

NVD's analysis a second authority

severity
6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
weakness
CWE-79
affected versions
synacor zimbra collaboration suite 9.0.0
also scored by
6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

check it yourself wiki.zimbra.com wiki.zimbra.com wiki.zimbra.com receipt

Dated events

2023-04-03Added to CISA KEV2023-04-21EPSS moved 0.01 to 0.842023-04-24CISA remediation due2026-06-15EPSS moved 0.94 to 0.17

Movement the material steps

21 Apr 20220.0089
7 Mar 20239.2e-4 · scoring model v2023.03.01
21 Apr 20230.84468 · crossed 0.10 and 0.50
6 Jun 20230.91521 · crossed 0.90
22 Sep 20230.89789 · crossed 0.90
1 Oct 20230.91058 · crossed 0.90
17 Mar 20250.94251 · scoring model v2025.03.14
15 Jun 20260.17252 · crossed 0.50 and 0.90 · scoring model v2026.06.15
7 Jul 20260.17634
Show all 70 observations
21 Apr 20220.0089
29 Apr 20220.00954
7 Mar 20239.2e-4
8 Mar 20230.00092
21 Mar 20230.00100
5 Apr 20230.01319
21 Apr 20230.84468
27 Apr 20230.81276
8 May 20230.81528
23 May 20230.82160
6 Jun 20230.91521
8 Jul 20230.94463
15 Jul 20230.93282
22 Aug 20230.93948
4 Sep 20230.93606
18 Sep 20230.94116
22 Sep 20230.89789
1 Oct 20230.91058
11 Nov 20230.91246
26 Nov 20230.91614
23 Jan 20240.91445
7 Feb 20240.95019
21 Feb 20240.94859
6 Mar 20240.94683
19 Mar 20240.95789
4 Apr 20240.96153
12 Jul 20240.96100
9 Aug 20240.94836
5 Sep 20240.95180
16 Oct 20240.96076
24 Nov 20240.96050
17 Dec 20240.96202
3 Jan 20250.95876
26 Feb 20250.95879
17 Mar 20250.94251
29 Mar 20250.94252
30 Mar 20250.94251
1 May 20250.94165
4 May 20250.94251
1 Jun 20250.94165
4 Jun 20250.94251
10 Jun 20250.94239
1 Jul 20250.9415
4 Jul 20250.94239
16 Jul 20250.94285
1 Aug 20250.94207
4 Aug 20250.94285
1 Sep 20250.94207
4 Sep 20250.94285
1 Oct 20250.94207
4 Oct 20250.94285
1 Nov 20250.9424
4 Nov 20250.94311
11 Nov 20250.9415
18 Nov 20250.92951
21 Nov 20250.9415
1 Dec 20250.93977
4 Dec 20250.9415
10 Dec 20250.94248
1 Jan 20260.94114
4 Jan 20260.94248
1 Feb 20260.94114
4 Feb 20260.94248
1 Mar 20260.94114
3 Mar 20260.94224
4 Mar 20260.94298
29 Mar 20260.94282
4 Apr 20260.94125
15 Jun 20260.17252
7 Jul 20260.17634

70 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.17634Published2022-04-20CISA KEV2023-04-03Index as of2026-09-04

Listed by CISA 348 days after it published and the record had been public for 4 years, 4 months when this index was last written.

No material movement in 59 days as of the last ingest this index recorded.

Published 2022-04-20 receipt · CISA KEV 2023-04-03 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-79, improper neutralization of input during web page generation ('cross-site scripting'). The index holds 47893 prior instances of this class, 31 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2018-19953 · QNAP Systems Inc. QTSmatches 8 of 8KEV listed · 2020receipt
CVE-2020-3580 · Cisco Adaptive Security Appliance (ASA)…matches 8 of 8KEV listed · 2020receipt
CVE-2018-6882matches 8 of 8KEV listed · 2018receipt
CVE-2024-27443matches 8 of 8KEV listed · 2024receipt
CVE-2024-37383matches 8 of 8KEV listed · 2024receipt
CVE-2023-37580matches 8 of 8KEV listed · 2023receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

47893 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

Records related to this one

Fixed with these, by one advisory

advisory published by wiki.zimbra.com

Of the 2 records in this advisory, this is the only one holding a CISA KEV listing: Synacor Zimbra Collaboration Suite (ZCS) Cross-Site Scriptin.

Listed because one advisory covers them, not because they are the same defect. Each record's own state is on its own page.

Grouping: held values

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What usually comes next

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