Security Digest · Vulnerability record
CVE-2025-32973: org.xwiki.platform:xwiki-platform-component-wiki provides no warning when granting XWiki.ComponentClass programming right
XWiki is a generic wiki platform. In versions starting from 15.9-rc-1 to before 15.10.12, from 16.0.0-rc-1 to before 16.4.3, and from 16.5.0-rc-1 to before 16.8.0-rc-1, when a user with programming rights edits a document in XWiki that was last edited by a user without programming rights and contains an…
CVSS 9.1 Critical EPSS 0.4% · p33
Should you act?
Critical, preconditions apply
Severe if exploited, but exploitation needs conditions that may not apply to you. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Not in CISA KEV, but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.4%, percentile 33: FIRST’s model estimates a 0.4% chance of exploitation activity in the next 30 days, higher than 33% of all scored CVEs (low). EPSS is a probability, not a verdict.
- Needs an account (low (any account)). Exposure depends on who can log in.
- Only applies if your dependency tree includes
org.xwiki.platform:xwiki-platform-component-wiki(Maven) >= 15.9-rc-1, < 15.10.12, fixed in 15.10.12;org.xwiki.platform:xwiki-platform-component-wiki(Maven) >= 16.0.0-rc-1, < 16.4.3, fixed in 16.4.3;org.xwiki.platform:xwiki-platform-component-wiki(Maven) >= 16.5.0-rc-1, < 16.8.0-rc-1, fixed in 16.8.0-rc-1. Check your lockfile, including transitive dependencies.
What it is
XWiki is a generic wiki platform. In versions starting from 15.9-rc-1 to before 15.10.12, from 16.0.0-rc-1 to before 16.4.3, and from 16.5.0-rc-1 to before 16.8.0-rc-1, when a user with programming rights edits a document in XWiki that was last edited by a user without programming rights and contains an XWiki.ComponentClass, there is no warning that this will grant programming rights to this object. An attacker who created such a malicious object could use this to gain programming rights on the wiki. For this, the attacker needs to have edit rights on at least one page to place this object and then get an admin user to edit that document. This issue has been patched in versions 15.10.12, 16.4.3, and 16.8.0-rc-1.
From the GitHub advisory
Impact
When a user with programming right edits a document in XWiki that was last edited by a user without programming right and contains an XWiki.ComponentClass, there is no warning that this will grant programming right to this object. An attacker who created such a malicious object could use this to gain programming right on the wiki. For this, the attacker needs to have edit right on at least one page to place this object and then get an admin user to edit that document.
To reproduce the problem, as a user without programming right, add an object of type XWiki.ComponentClass to any page and then edit the page as a user with programming right. There should be warning displayed, if not, the XWiki installation is vulnerable.
While such a warning didn't exist in any version of XWiki, only in XWiki 15.9 RC1 these kinds of warnings have been introduced which is why this is considered the first version that has this vulnerability. Before that, the advice was to be careful when editing pages edited by untrusted users.
Patches This problem has been patched in XWiki 15.10.2, 16.4.3, and 16.8.0 RC1.
Weakness type: CWE-862.
Product: org.xwiki.platform:xwiki-platform-component-wiki (Maven) · Assigned by: GitHub_M · Published: 2025-04-30
Affected and fixed versions
| Ecosystem | Package | Vulnerable | First fixed |
|---|---|---|---|
| Maven | org.xwiki.platform:xwiki-platform-component-wiki | >= 15.9-rc-1, < 15.10.12 | 15.10.12 |
| Maven | org.xwiki.platform:xwiki-platform-component-wiki | >= 16.0.0-rc-1, < 16.4.3 | 16.4.3 |
| Maven | org.xwiki.platform:xwiki-platform-component-wiki | >= 16.5.0-rc-1, < 16.8.0-rc-1 | 16.8.0-rc-1 |
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| xwiki | xwiki-platform | >= 15.9-rc-1, < 15.10.12, >= 16.0.0-rc-1, < 16.4.3, >= 16.5.0-rc-1, < 16.8.0-rc-1 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_M | 3.1 | 9.1 Critical | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
| GitHub | 3.1 | 9.0 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: low (any account)
- User interaction: required (a user must click/open something)
- Scope: changed (can affect other components)
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc, automatable no, technical impact total.
- FIRST EPSS (model of 2026-10-21): 0.40% probability of exploitation activity in the next 30 days; percentile 33.
Timeline
- — GitHub-reviewed advisory GHSA-x7wv-5qg4-vmr6 published (critical)
- — CVE record last updated
- — CVE record published by GitHub_M
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vulnerability records
- GitHub Advisory GHSA-x7wv-5qg4-vmr6 github.com
- CVE.org record CVE-2025-32973 cve.org
- NVD entry CVE-2025-32973 nvd.nist.gov
Other references from the CVE record and advisory
- github.com github.com
- github.com github.com
- jira.xwiki.org jira.xwiki.org