CVE-2023-31126

CRITICALNVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under NVD CVSS v3. EPSS exploit probability: 0.8%, top 47% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.0Exploit: Elevated riskExposed: 0

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

org.xwiki.commons:xwiki-commons-xml is an XML library used by the open-source wiki platform XWiki. The HTML sanitizer, introduced in version 14.6-rc-1, allows the injection of arbitrary HTML code and thus cross-site scripting via invalid data attributes. This vulnerability does not affect restricted cleaning in HTMLCleaner as there attributes are cleaned and thus characters like / and > are removed in all attribute names. This problem has been patched in XWiki 14.10.4 and 15.0 RC1 by making sure that data attributes only contain allowed characters. There are no known workarounds apart from upgrading to a version including the fix.

CVSS v3
9.0
EG Score
9.0(medium)
EG Risk
57(Track*)
EG Risk 57/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
53%
KEV
Not listed

Published

May 9, 2023

Last Modified

January 28, 2025

Advisory Details (3)

Auto-updated Jul 24, 2026
Patch available. Sources: github_commit, github.
generic

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https://jira.xwiki.org/browse/XCOMMONS-2606
github Patch Available

Improper Neutralization of Invalid Characters in Data Attribute Names in org.xwiki.commons:xwiki-commons-xml · Advisory · xwiki/xwiki-commons · GitHub

https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-pv7v-ph6g-3gxv
github_commit Patch Available

commit 0b8e9c45b7e7 (xwiki/xwiki-commons)

Patch available: xwiki/xwiki-commons xwiki-commons-17.4.8 (contains commit 0b8e9c45b7e7)

https://github.com/xwiki/xwiki-commons/commit/0b8e9c45b7e7457043938f35265b2aa5adc76a68

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.xwiki.commons:xwiki-commons-xml14.10 ... 14.9-rc-1 (12 versions)14.10.4—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 49× 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.

Showing the most recent 100 of 104 total refreshes for this CVE.

  1. 2026-07-26 14:52 UTCEPSS rescore
  2. 2026-07-26 14:52 UTCEPSS rescore
  3. 2026-07-25 14:16 UTCEPSS rescore
  4. 2026-07-24 14:15 UTCEPSS rescore
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  7. 2026-07-23 02:22 UTCEG score recompute
  8. 2026-07-22 23:09 UTCEG score recompute
  9. 2026-07-22 14:06 UTCEPSS rescore
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  21. 2026-07-15 21:19 UTCOSV refresh
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  1. 2026-07-13 22:28 UTCEPSS rescore
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  23. 2026-06-28 04:54 UTCEPSS rescore
  24. 2026-06-27 21:34 UTCOSV refresh
  25. 2026-06-27 03:07 UTCEPSS rescore
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  28. 2026-06-24 14:03 UTCEPSS rescore
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  30. 2026-06-23 21:31 UTCEPSS rescore
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  40. 2026-06-18 17:51 UTCEPSS rescore
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  44. 2026-06-16 17:51 UTCEPSS rescore
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  46. 2026-06-15 17:47 UTCEPSS rescore
  47. 2026-06-14 23:16 UTCEPSS rescore
  48. 2026-06-12 23:10 UTCEPSS rescore
  49. 2026-06-11 13:59 UTCEPSS rescore
  50. 2026-06-10 22:17 UTCEPSS rescore
  51. 2026-06-10 13:21 UTCEPSS rescore
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  53. 2026-06-10 08:17 UTCOSV refresh
  54. 2026-06-06 13:46 UTCEPSS rescore
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  56. 2026-06-05 22:46 UTCEPSS rescore
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  69. 2026-05-29 13:43 UTCEPSS rescore
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  72. 2026-05-27 13:39 UTCEPSS rescore
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  74. 2026-05-26 13:43 UTCEPSS rescore
  75. 2026-05-26 13:43 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-31126?
CVE-2023-31126 is a critical vulnerability published on May 9, 2023. org.xwiki.commons:xwiki-commons-xml is an XML library used by the open-source wiki platform XWiki. The HTML sanitizer, introduced in version 14.6-rc-1, allows the injection of arbitrary HTML code and thus cross-site scripting via invalid data attributes. This vulnerability does not affect…
When was CVE-2023-31126 disclosed?
CVE-2023-31126 was first published in the National Vulnerability Database on May 9, 2023, with the most recent update on January 28, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-31126 actively exploited?
CVE-2023-31126 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 46.6% of all scored CVEs.
What is the CVSS score of CVE-2023-31126?
CVE-2023-31126 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2023-31126?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-31126, 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.

Dependency Blast Radius

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