vciy

CVE-2020-8813

INDEX BUILT · 2026-09-20

No source can show you its own past. This one can.

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graph_realtime.php in Cacti 1.2.8 allows remote attackers to execute arbitrary OS commands via shell metacharacters in a cookie, if a guest user has…

CVE-2020-88133 of 4 sources documented this
54

rank 54 = 26 + 22 + 0 + 6 + 0

rank@v1 · this cycle

Someone is already using it

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

EPSS 0.73957  ·  without this subject the record ranks 28

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.8, from NVD  ·  without this subject the record ranks 32

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 54

How much of the world it touches

NVD CPE configurations

6 products in the CPE ranges  ·  without this subject the record ranks 48

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 54

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$3.69Mover the next 30 days, if this record is yours
Movement-$503,000on 2024-12-17, the last material move, 1 year, 9 months before this reading
Basisassumeda published average, not your estate

$3.69M = $4.99M incident cost x 1 exposure x 0.73957 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

0.73957EPSSNOT IN KEVas of 2026-09-20
Severity8.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationpublic proof-of-conceptreceipt
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-06-15, 96 days at 0.74, as of 2026-09-19. arc-rules@v1

Foresight · where to check next

CVE-2017-6884Soliton SystemsActiveMQ BrokerPHPCVE-2023-43208CVE-2021-271028813

This record is one instance of CWE-78, improper neutralization of special elements used in an os command ('os command injection'). The index holds 6775 prior instances of this class, 121 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 · low privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classCWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')receipt
Published consequencesCWE-78: Confidentiality, Integrity, Availability, Non-Repudiation: Execute Unauthorized Code or Commands, DoS: Crash, Exit, or Restart, Read Files or Directories, Modify Files or Directories, Read…[email protected]

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 19 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.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Proof-of-concept published · 4 public repositories, 2020-02-22.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 4 public repositories2020-02-22receipt
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, NVD8.8 HIGHreceipt
Exploit probability0.73957 · top 0.54% of all CVEsreceipt
Blast breadth4 products across 4 vendorsderived
Assigned bymitrereceipt
Recorded changes51 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesCacti; Fedoraproject fedora; Opmantek open-audit; and 1 morereceipt
Published rangescacti 1.2.8; fedoraproject fedora 30; fedoraproject fedora 31; fedoraproject fedora 32receipt
Show all 6 published ranges
cacti 1.2.8
fedoraproject fedora 30
fedoraproject fedora 31
fedoraproject fedora 32
opmantek open-audit 3.3.1
debian linux 10.0

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

graph_realtime.php in Cacti 1.2.8 allows remote attackers to execute arbitrary OS commands via shell metacharacters in a cookie, if a guest user has the graph real-time privilege. receipt

NVD's analysis a second authority

severity
8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-78
affected versions
cacti 1.2.8; fedoraproject fedora 30; fedoraproject fedora 31; and 3 more, listed in full below

check it yourself gist.github.com drive.google.com github.com shells.systems github.com packetstormsecurity.com +10 morereceipt

Dated events

2022-02-04EPSS moved 0.16 to 0.482023-03-07EPSS moved 0.48 to 0.972026-06-15EPSS moved 0.94 to 0.74

Movement the material steps

14 Apr 20210.16075
4 Feb 20220.48174
7 Mar 20230.96935 · crossed 0.50 and 0.90 · scoring model v2023.03.01
17 Dec 20240.81364 · crossed 0.90
17 Mar 20250.93975 · crossed 0.90 · scoring model v2025.03.14
15 Jun 20260.73779 · crossed 0.90 · scoring model v2026.06.15
19 Sep 20260.73957
Show all 48 observations
14 Apr 20210.16075
4 Feb 20220.48174
7 Mar 20230.96935
10 Mar 20230.96664
26 Mar 20230.96407
24 Apr 20230.96117
8 May 20230.96759
9 Jun 20230.96721
8 Jul 20230.96499
11 Jul 20230.96233
27 Jul 20230.96436
13 Aug 20230.96358
31 Aug 20230.96085
18 Sep 20230.94641
8 Nov 20230.94670
12 Jan 20240.95033
15 Feb 20240.94877
2 Apr 20240.94184
18 Apr 20240.94094
2 Jun 20240.92063
5 Jul 20240.90692
20 Aug 20240.91157
17 Sep 20240.92063
7 Oct 20240.92182
19 Oct 20240.91435
17 Dec 20240.81364
13 Jan 20250.81135
31 Jan 20250.76826
15 Feb 20250.76369
5 Mar 20250.80761
17 Mar 20250.93975
4 May 20250.94187
7 Jul 20250.94137
9 Oct 20250.94158
25 Oct 20250.94156
17 Nov 20250.94182
18 Nov 20250.93351
21 Nov 20250.94182
3 Jan 20260.94155
4 Jan 20260.94119
10 Jan 20260.94078
14 Jan 20260.94067
19 Feb 20260.94119
2 Mar 20260.94091
4 Apr 20260.93926
26 May 20260.93591
15 Jun 20260.73779
19 Sep 20260.73957

48 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 0.73957Published · Public PoC2020-02-22Index as of2026-09-19

The record had been public for 6 years, 6 months when this index was last written.

Published 2020-02-22 receipt · Public PoC 2020-02-22 receipt · Index as of 2026-09-19 derived

The pattern, elsewhere

This record is one instance of CWE-78, improper neutralization of special elements used in an os command ('os command injection'). The index holds 6775 prior instances of this class, 121 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2017-6884matches 8 of 8KEV listed · 2017receipt
CVE-2026-25108 · Soliton Systems K.K. FileZenmatches 8 of 8KEV listed · 2026receipt
CVE-2026-34197 · Apache ActiveMQ Brokermatches 8 of 8KEV listed · 2026receipt
CVE-2024-4577 · PHPmatches 7 of 8KEV listed · 2024receipt
CVE-2023-43208matches 7 of 8KEV listed · 2023receipt
CVE-2021-27102matches 7 of 8KEV listed · 2021receipt

"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

6775 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.

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