CVE-2023-29525: XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it

Q: How do I fix CVE-2023-29525?

xwiki: upgrade to 14.4.8, 14.10.3. Exact commands for each OS are on this page.

Q: Is CVE-2023-29525 being exploited?

CVE-2023-29525 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-29525 affect?

CVE-2023-29525 affects xwiki. Severity is critical (CVSS 9.9). XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Affected versions of xwiki are subject to code injection in the `since` parameter of the `/xwiki/bin/view/XWiki/Notifications/Code/Lega

Q: How urgent is CVE-2023-29525?

Priority 65/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference

This week

CRITICAL 9.9UPGRADE

CVE-2023-29525 is a critical-severity flaw (CVSS 9.9) affecting xwiki. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Affected versions of xwiki are subject to code injection in the `since` parameter of the `/xwiki/bin/view/XWiki/Notifications/Code/LegacyNotificationAdministration` endpoint. This provides an XWiki syntax injection attack via the since-parameter, allowing privilege escalation from view to programming rights and subsequent code execution privil

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	9.9 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	77.8% (top 1%)
CISA exploited list	No
Weakness	CWE-74
Published	2023-04-19
Last modified	2026-10-24

Publisher (CNA): GitHub, Inc. · Vendor: xwiki

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-04-19 00:15 UTCPublished CVE record published
2026-10-24 13:10 UTCUpdated Record last modified

xwiki xwiki UPGRADE

Affected: < 14.4.8 · >= 14.5 and < 14.10.3

Fixed in: 14.4.8, 14.10.3

Safe to downgrade to: a release before 14.5

1. Check installed version

apt-cache policy xwiki || rpm -q xwiki || xwiki --version

2. UPGRADE to 14.4.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade xwiki

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade xwiki

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 14.5 (Debian / Ubuntu)

apt-cache madison xwiki sudo apt install xwiki=<VERSION_BEFORE_14.5> sudo apt-mark hold xwiki

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list xwiki sudo dnf downgrade xwiki-<VERSION_BEFORE_14.5> sudo dnf versionlock add xwiki

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Exact fixes by distribution

Maven · org.xwiki.platform:xwiki-platform-distribution-war · FIXED · 13.10.11 · vulnerable: >= 12.6.1, < 13.10.11 · source

Set org.xwiki.platform:xwiki-platform-distribution-war to 13.10.11 or later in pom.xml or build.gradle, then rebuild and redeploy.

Maven · org.xwiki.platform:xwiki-platform-legacy-events-hibernate-ui · FIXED · 14.10.3 · vulnerable: >= 14.6-rc-1, < 14.10.3 · source

Set org.xwiki.platform:xwiki-platform-legacy-events-hibernate-ui to 14.10.3 or later in pom.xml or build.gradle, then rebuild and redeploy.

Fedora 46 · gnome-shell-extension-tiling-assistant · FIXED · 56-1.fc46 · FEDORA-2026-ebf66a5321 · source

sudo dnf upgrade --advisory=FEDORA-2026-ebf66a5321

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-29525?

xwiki: upgrade to 14.4.8, 14.10.3. Exact commands for each OS are on this page.

Is CVE-2023-29525 being exploited?

CVE-2023-29525 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-29525 affect?

CVE-2023-29525 affects xwiki. Severity is critical (CVSS 9.9). XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Affected versions of xwiki are subject to code injection in the `since` parameter of the `/xwiki/bin/view/XWiki/Notifications/Code/Lega

How urgent is CVE-2023-29525?

Priority 65/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference

References

← Back to latest CVEs