Which products and versions are affected by CVE-2011-4453?

Affected: Pmwiki versions 2.0.0, 2.0.1, 2.0.10, 2.0.11, 2.0.12, 2.0.13, 2.0.2, 2.0.3. The full list is in the CVE brief.

Is CVE-2011-4453 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2011-4453 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2011-4453?

Public exploit code is available.

Is there a fix for CVE-2011-4453?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2011-4453 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2011-4453

HighPublic exploit

The PageListSort function in scripts/pagelist.php in PmWiki 2.x before 2.2.35 allows remote attackers to execute arbitrary code via PHP sequences in a crafted order parameter in a pagelist directive, leading to unintended use of the PHP create_function function.

Published Dec 22, 2011 · Updated Apr 28, 2026

Key Facts

Patch immediately

CVE-2011-4453 is a high-severity vulnerability (CVSS 7.5 v2) affecting Pmwiki.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 52% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

7.5

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS (30-day exploit likelihood)

52%

Higher than 98.9% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2011-4453 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Affected Products

144 affected entries in total

Product	Affected versions	Fixed in
PmwikiPmwiki	2.0.0, 2.0.1, 2.0.10, 2.0.11, 2.0.12, 2.0.13, 2.0.2, 2.0.3	n/a

Timeline

Publicly disclosed
Dec 22, 2011
Last updated
Apr 28, 2026

Weakness Type

CWE-94 Improper Control of Generation of Code ('Code Injection')

References

patchhttp://www.pmwiki.org/wiki/PITS/01271
exploitMSF pmwiki_pagelist.rb
exploitExploitDB-18149
exploitExploitDB-18243
exploit18149

1 more references in the full CVE brief

FAQ

Common Questions.

The PageListSort function in scripts/pagelist.php in PmWiki 2.x before 2.2.35 allows remote attackers to execute arbitrary code via PHP sequences in a crafted order parameter in a pagelist directive, leading to unintended use of the PHP create_function function.
Affected: Pmwiki versions 2.0.0, 2.0.1, 2.0.10, 2.0.11, 2.0.12, 2.0.13, 2.0.2, 2.0.3. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2011-4453 Running On Your Attack Surface?

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