CVE-2023-29202

CRITICALNVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under NVD CVSS v3. EPSS exploit probability: 1.4%, top 31% 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.

XWiki Commons are technical libraries common to several other top level XWiki projects. The RSS macro that is bundled in XWiki included the content of the feed items without any cleaning in the HTML output when the parameter content was set to true. This allowed arbitrary HTML and in particular also JavaScript injection and thus cross-site scripting (XSS) by specifying an RSS feed with malicious content. With the interaction of a user with programming rights, this could be used to execute arbitrary actions in the wiki, including privilege escalation, remote code execution, information disclosure, modifying or deleting content and sabotaging the wiki. The issue has been patched in XWiki 14.6 RC1, the content of the feed is now properly cleaned before being displayed. As a workaround, if the RSS macro isn't used in the wiki, the macro can be uninstalled by deleting WEB-INF/lib/xwiki-platform-rendering-macro-rss-XX.jar, where XX is XWiki's version, in the web application's directory.

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
70%
KEV
Not listed

Published

April 15, 2023

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated Jul 26, 2026
Patch available. Sources: github_commit, github.
generic

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https://jira.xwiki.org/browse/XWIKI-19671
github Patch Available

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in org.xwiki.platform:xwiki-platform-rendering-macro-rss · Advisory · xwiki/xwiki-platform · GitHub

https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-c885-89fw-55qr
github_commit Patch Available

commit 5c7ebe47c289 (xwiki/xwiki-platform)

Patch available: xwiki/xwiki-platform xwiki-platform-17.4.8 (contains commit 5c7ebe47c289)

https://github.com/xwiki/xwiki-platform/commit/5c7ebe47c2897e92d8f04fe2e15027e84dc3ec03

Affected Packages

(2 across 1 ecosystem)
Maven(2)
PackageVulnerable rangeFixed inDependents
org.xwiki.platform:xwiki-core-rendering-macro-rss———
org.xwiki.platform:xwiki-platform-rendering-macro-rss—14.6-rc-1—

Weakness Classification(1)

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 109 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
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  7. 2026-07-23 02:21 UTCEG score recompute
  8. 2026-07-22 23:09 UTCEG score recompute
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  21. 2026-07-15 23:23 UTCOSV refresh
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  1. 2026-07-13 22:28 UTCEPSS rescore
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  24. 2026-06-28 00:04 UTCOSV refresh
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  48. 2026-06-13 22:59 UTCEPSS rescore
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  50. 2026-06-12 23:10 UTCEPSS rescore
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  55. 2026-06-10 10:47 UTCOSV refresh
  56. 2026-06-08 14:15 UTCEPSS rescore
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  72. 2026-05-31 22:29 UTCEPSS rescore
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  74. 2026-05-31 22:29 UTCEPSS rescore
  75. 2026-05-31 00:15 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-29202?
CVE-2023-29202 is a critical vulnerability published on April 15, 2023. XWiki Commons are technical libraries common to several other top level XWiki projects. The RSS macro that is bundled in XWiki included the content of the feed items without any cleaning in the HTML output when the parameter content was set to true. This allowed arbitrary HTML and in particular…
When was CVE-2023-29202 disclosed?
CVE-2023-29202 was first published in the National Vulnerability Database on April 15, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-29202 actively exploited?
CVE-2023-29202 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 30.5% of all scored CVEs.
What is the CVSS score of CVE-2023-29202?
CVE-2023-29202 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2023-29202?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-29202, 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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