CVE-2024-21651

XWiki Denial of Service attack through attachments

MEDIUM

6.5

CVSS Score

Published: January 8, 2024 at 11:30 PM UTC

Updated: June 17, 2026 at 07:09 AM UTC

1 product affected across 1 vendorXwiki

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Severity

MEDIUM6.5

Exploit prediction

EPSS 0.6%

SSVC

No known exploit

Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. A user able to attach a file to a page can post a malformed TAR file by manipulating file modification times headers, which when parsed by Tika, could cause a denial of service issue via CPU consumption. This vulnerability has been patched in XWiki 14.10.18, 15.5.3 and 15.8 RC1.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Xwiki · Xwikimaven

95%

v < 14.10.18v < 15.5.3v < 15.8-rc-114.10 ≤ v < 14.10.1815.5 ≤ v < 15.5.315.6 ≤ v < 15.8

Affected range stops below 14.10.18, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.5.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.8, so it looks safe — our inference, not a vendor statement

Affected range stops below 15.8-rc-1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_CONFIRMIssue TrackingVendor Advisory

Source: [email protected]

https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-8959-rfxh-r4j4

x_refsource_MISCIssue TrackingVendor Advisory

Source: [email protected]

https://jira.xwiki.org/browse/XCOMMONS-2796

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUM[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-400

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