CVE-2023-37908
What it is
XWiki Rendering is a generic Rendering system that converts textual input in a given syntax into another syntax. The cleaning of attributes during XHTML rendering, introduced in version 14.6-rc-1, allowed the injection of arbitrary HTML code and thus cross-site scripting via invalid attribute names. This can be exploited, e.g., via the link syntax in any content that supports XWiki syntax like comments in XWiki. When a user moves the mouse over a malicious link, the malicious JavaScript code is executed in the context of the user session. When this user is a privileged user who has programming rights, this allows server-side code execution with programming rights, impacting the confidentiality, integrity and availability of the XWiki instance. While this attribute was correctly recognized as not allowed, the attribute was still printed with a prefix `data-xwiki-translated-attribute-` without further cleaning or validation. This problem has been patched in XWiki 14.10.4 and 15.0 RC1 by removing characters not allowed in data attributes and then validating the cleaned attribute again. There are no known workarounds apart from upgrading to a version including the fix.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account, but needs a user to act. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 1.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.1% in the next 30 days (EPSS).
- Severity: 9.0 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.1% · EPSS, next 30 days
- Weakness
- CWE-83
- Record status
- Modified
Affected
- Xwiki xwiki-rendering < 14.10.4
Attack profile CVSS 3.1 · 9.0
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-37908.md and follow it. Check whether this project is affected by CVE-2023-37908. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/xwiki/xwiki-rendering/commit/f4d5acac451dccaf276e69f0b49b72221eef5d2f
- https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-663w-2xp3-5739
- https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-6gf5-c898-7rxp
- https://jira.xwiki.org/browse/XRENDERING-697
- https://github.com/xwiki/xwiki-rendering/commit/f4d5acac451dccaf276e69f0b49b72221eef5d2f
- https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-663w-2xp3-5739
- https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-6gf5-c898-7rxp
- https://jira.xwiki.org/browse/XRENDERING-697
References
- https://github.com/xwiki/xwiki-rendering/commit/f4d5acac451dccaf276e69f0b49b72221eef5d2f
- https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-663w-2xp3-5739
- https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-6gf5-c898-7rxp
- https://jira.xwiki.org/browse/XRENDERING-697
- https://github.com/xwiki/xwiki-rendering/commit/f4d5acac451dccaf276e69f0b49b72221eef5d2f
- https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-663w-2xp3-5739
- https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-6gf5-c898-7rxp
- https://jira.xwiki.org/browse/XRENDERING-697