xwiki-platform: Improper Handling of Insufficient Privileges
CVE-2024-21648 is a high-severity improper handling of insufficient privileges vulnerability in xwiki-platform from XWiki, with a CVSS 3.1 base score of 8.8 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. Affected xwiki-platform versions: >= 1.0, < 14.10.17; >= 15.0-rc-1, < 15.5.3; >= 15.6-rc-1, < 15.8-rc-1. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.51% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Xwiki to 14.10.17 or 15.5.3 or 15.8, whichever matches your release line, or a later version.
- Read the advisory on github.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| XWiki | xwiki-platform | >= 1.0, < 14.10.17; >= 15.0-rc-1, < 15.5.3; >= 15.6-rc-1, < 15.8-rc-1 | Not stated |
| XWiki | Xwiki | before 14.10.17; 15.0 up to, but not including, 15.5.3; 15.6 up to, but not including, 15.8 | 14.10.17, 15.5.3, 15.8 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 8.0 | High | CNA (github.com) |
| CVSS 3.1 | 8.8 | High | NVD |
Official description
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. The rollback action is missing a right protection, a user can rollback to a previous version of the page to gain rights they don't have anymore. The problem has been patched in XWiki 14.10.17, 15.5.3 and 15.8-rc-1 by ensuring that the rights are checked before performing the rollback.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Handling of Insufficient Privileges
The product does not handle or incorrectly handles when it has insufficient privileges to perform an operation.
More Improper Handling of Insufficient Privileges vulnerabilities (CWE-274)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Advisories
- github.com/xwiki/xwiki-platform/security/advisories/GHSA-xh35-w7wg-95v3Issue Tracking
- jira.xwiki.org/browse/XWIKI-21257Issue Tracking
Patches and release notes
Other vulnerabilities in xwiki-platform
- 7.1 High severity
- 8.2 High severity
- 7.5 High severity
- 9.3 Critical severity
- 8.6 High severity
- 7.5 High severity
Recent Improper Handling of Insufficient Privileges vulnerabilities
- 8.8 High severity
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