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No exploitation reportedFix available

CVE-2023-26477

No exploitation reported by the sources we read.

  • Published2023-03-02
  • Fixed in14.9 · 14.9-rc-1 · 14.4.6 · 13.10.10
  • WeaknessCWE-94 · CWE-95

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

XWiki Platform is a generic wiki platform. Starting in versions 6.3-rc-1 and 6.2.4, it's possible to inject arbitrary wiki syntax including Groovy, Python and Velocity script macros via the `newThemeName` request parameter (URL parameter), in combination with additional parameters. This has been patched in the supported versions 13.10.10, 14.9-rc-1, and 14.4.6. As a workaround, it is possible to edit `FlamingoThemesCode.WebHomeSheet` and manually perform the changes from the patch fixing the issue.

Timeline

dates in UTC
  1. 2023-03-0218:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-26477?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-26477?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Xwiki
BranchAffectedFixed in
14.x≥ 14.5, < 14.914.9
14.x≥ 14.5, < 14.9-rc-114.9-rc-1
14.x≥ 14.0, < 14.4.614.4.6
13.10≥ 6.2.4, < 13.10.1013.10.10

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • xwiki-platform
    Affected
    • = >= 6.2.4, < 13.10.10no fix stated
    • = >= 14.0, < 14.4.6no fix stated
    • = >= 14.5, < 14.9-rc-1no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-03-02

Fix

  1. Update Xwiki to 14.9 · 14.9-rc-1 · 14.4.6 · 13.10.10

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2025-03-05
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.110known since 2026-10-23
  • NVDCVSS 3.19.8read 2026-10-23
  • CNAweakness (CWE)CWE-95known since 2026-10-23
  • NVDweakness (CWE)CWE-94read 2026-10-23
  • FIRST EPSSEPSS score74.8 %read 2026-11-02
  • OSVaffected packages—
  • GitHub AdvisoriesadvisoryCRITICAL2023-03-03

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2023-03-02
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-x2qm-r4wx-8gpg

Frequently asked questions

What is CVE-2023-26477?

XWiki Platform is a generic wiki platform. Starting in versions 6.3-rc-1 and 6.2.4, it's possible to inject arbitrary wiki syntax including Groovy, Python and Velocity script macros via the `newThemeName` request parameter (URL parameter), in combination with additional parameters. This has been patched in the supported versions 13.10.10, 14.9-rc-1, and 14.4.6. As a workaround, it is possible to edit `FlamingoThemesCode.WebHomeSheet` and manually perform the changes from the patch fixing the issue.

Is CVE-2023-26477 actively exploited?

Active exploitation of CVE-2023-26477 has not been confirmed. Its EPSS score was 74.8% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-26477?

CVE-2023-26477 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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