CVE-2011-4453

NONECVSS 0.0Weaponized
0.0
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 52%
CISA-KEV: Not listedEPSS: 52%CVSS: —Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
—
EG Score
0.0(none)
EPSS
98.8%
KEV
Not listed

Published

December 22, 2011

Last Modified

April 29, 2026

References (6)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 30× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:23 UTCEPSS rescore
  2. 2026-07-05 02:26 UTCEPSS rescore
  3. 2026-07-02 14:01 UTCEPSS rescore
  4. 2026-07-01 15:02 UTCEPSS rescore
  5. 2026-07-01 15:02 UTCEPSS rescore
  6. 2026-06-30 23:19 UTCEPSS rescore
  7. 2026-06-30 23:19 UTCEPSS rescore
  8. 2026-06-28 04:53 UTCEPSS rescore
  9. 2026-06-28 04:52 UTCEPSS rescore
  10. 2026-06-27 03:05 UTCEPSS rescore
  11. 2026-06-27 03:05 UTCEPSS rescore
  12. 2026-06-25 13:46 UTCEPSS rescore
  13. 2026-06-23 21:30 UTCEPSS rescore
  14. 2026-06-23 21:30 UTCEPSS rescore
  15. 2026-06-21 01:56 UTCEPSS rescore
  16. 2026-06-21 01:56 UTCEPSS rescore
  17. 2026-06-18 17:49 UTCEPSS rescore
  18. 2026-06-18 17:49 UTCEPSS rescore
  19. 2026-06-17 17:49 UTCEPSS rescore
  20. 2026-06-17 17:49 UTCEPSS rescore
  21. 2026-06-17 17:49 UTCEPSS rescore
  22. 2026-06-16 17:49 UTCEPSS rescore
  23. 2026-06-15 17:44 UTCEPSS rescore
  24. 2026-06-14 23:14 UTCEPSS rescore
  25. 2026-06-14 23:14 UTCEPSS rescore
Show 34 more
  1. 2026-06-13 22:57 UTCEPSS rescore
  2. 2026-06-13 22:57 UTCEPSS rescore
  3. 2026-06-12 23:08 UTCEPSS rescore
  4. 2026-06-10 22:14 UTCEPSS rescore
  5. 2026-06-10 13:17 UTCEPSS rescore
  6. 2026-06-07 15:22 UTCEPSS rescore
  7. 2026-06-07 15:22 UTCEPSS rescore
  8. 2026-06-05 22:44 UTCEPSS rescore
  9. 2026-06-04 13:09 UTCEPSS rescore
  10. 2026-06-04 13:09 UTCEPSS rescore
  11. 2026-06-02 20:10 UTCEPSS rescore
  12. 2026-06-02 20:10 UTCEPSS rescore
  13. 2026-06-01 13:49 UTCEPSS rescore
  14. 2026-06-01 13:49 UTCEPSS rescore
  15. 2026-05-31 22:28 UTCEPSS rescore
  16. 2026-05-31 22:28 UTCEPSS rescore
  17. 2026-05-29 05:56 UTCEG score recompute
  18. 2026-05-29 05:56 UTCGHSA enrichment
  19. 2026-05-28 13:42 UTCEPSS rescore
  20. 2026-05-28 13:42 UTCEPSS rescore
  21. 2026-05-28 13:42 UTCEPSS rescore
  22. 2026-05-26 07:16 UTCEPSS rescore
  23. 2026-05-26 07:16 UTCEPSS rescore
  24. 2026-05-22 21:15 UTCEPSS rescore
  25. 2026-05-22 21:15 UTCEPSS rescore
  26. 2026-05-22 21:15 UTCEPSS rescore
  27. 2026-05-20 22:37 UTCEPSS rescore
  28. 2026-05-20 22:37 UTCEPSS rescore
  29. 2026-05-20 22:37 UTCEPSS rescore
  30. 2026-05-20 11:21 UTCEPSS rescore
  31. 2026-05-20 11:21 UTCEPSS rescore
  32. 2026-05-20 11:21 UTCEPSS rescore
  33. 2026-05-18 21:29 UTCEPSS rescore
  34. 2026-05-18 21:29 UTCEPSS rescore

Publicly available exploits

(3 references)

Working exploit code is in the public domain (1 Metasploit module) (2 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-18243✓ verified
    First seen Dec 14, 2011

    PmWiki 2.2.34 - 'pagelist' Remote PHP Code Injection (2) (Metasploit)

    Open source ↗
  • Exploit-DBEDB-18149✓ verified
    First seen Nov 23, 2011

    PmWiki 2.2.34 - 'pagelist' Remote PHP Code Injection (1)

    Open source ↗
  • Metasploitexploit/multi/http/pmwiki_pagelist✓ verified
    First seen Nov 9, 2011

    PmWiki pagelist.php Remote PHP Code Injection Exploit

    Open source ↗

Related CVEs(same CWE)

Frequently asked(4)

What is CVE-2011-4453?
CVE-2011-4453 is a none vulnerability published on December 22, 2011. 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.
When was CVE-2011-4453 disclosed?
CVE-2011-4453 was first published in the National Vulnerability Database on December 22, 2011, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2011-4453 actively exploited?
CVE-2011-4453 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2011-4453?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2011-4453, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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