How severe is CVE-2024-21650?

CVE-2024-21650 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-21650 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 93% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-21650?

CVE-2024-21650 affects Xwiki. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-21650?

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

Does CVE-2024-21650 have an EU (EUVD) identifier?

Yes. CVE-2024-21650 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0417.

When was CVE-2024-21650 published?

CVE-2024-21650 was published on 2024-01-08 and last updated on 2026-06-17.

CVE-2024-21650

CVE-2024-21650 is a critical-severity vulnerability in Xwiki with a CVSS 3.x base score of 10.0. Its EPSS exploit-prediction score of 93% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
EPSS exploit prediction: 93% (100th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-0417
Weakness: CWE-94
Affected product: Xwiki
Published: 2024-01-08
Last modified: 2026-06-17

Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. XWiki is vulnerable to a remote code execution (RCE) attack through its user registration feature. This issue allows an attacker to execute arbitrary code by crafting malicious payloads in the "first name" or "last name" fields during user registration. This impacts all installations that have user registration enabled for guests. This vulnerability has been patched in XWiki 14.10.17, 15.5.3 and 15.8 RC1.

Frequently asked questions

What is CVE-2024-21650?: XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. XWiki is vulnerable to a remote code execution (RCE) attack through its user registration feature. This issue allows an attacker to execute arbitrary code by crafting malicious payloads in the "first name" or "last name" fields during user registration. This impacts all installations that have user registration enabled for guests. This vulnerability has been patched in XWiki 14.10.17, 15.5.3 and 15.8 RC1.
How severe is CVE-2024-21650?: CVE-2024-21650 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-21650 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 93% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-21650?: CVE-2024-21650 affects Xwiki. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-21650?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2024-21650 have an EU (EUVD) identifier?: Yes. CVE-2024-21650 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0417.
When was CVE-2024-21650 published?: CVE-2024-21650 was published on 2024-01-08 and last updated on 2026-06-17.

References

Affected products (1)

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

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