How severe is CVE-2024-21651?

CVE-2024-21651 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2024-21651 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21651?

CVE-2024-21651 affects Xwiki. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-21651?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2024-21651 have an EU (EUVD) identifier?

Yes. CVE-2024-21651 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0294.

When was CVE-2024-21651 published?

CVE-2024-21651 was published on 2024-01-09 and last updated on 2026-06-17.

CVE-2024-21651

CVE-2024-21651 is a high-severity vulnerability in Xwiki with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0294
Weakness: CWE-400
Affected product: Xwiki
Published: 2024-01-09
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2024-21651?: 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.
How severe is CVE-2024-21651?: CVE-2024-21651 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2024-21651 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21651?: CVE-2024-21651 affects Xwiki. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-21651?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-21651 have an EU (EUVD) identifier?: Yes. CVE-2024-21651 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0294.
When was CVE-2024-21651 published?: CVE-2024-21651 was published on 2024-01-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*

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