CVE-2005-1921

Q: How do I fix CVE-2005-1921?

Published advisories record a fix for 2 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Q: Is CVE-2005-1921 being actively exploited?

Not that we know of. CVE-2005-1921 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 79.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

Q: How severe is CVE-2005-1921?

CVE-2005-1921 has a CVSS v2 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2005-1921 affect?

Published advisories record a fix for drupal (NVD), tikiwiki cms\/groupware (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGHEPSS 100th pctl

7.5

CVSS v2

NVD

Description

Eval injection vulnerability in PEAR XML_RPC 1.3.0 and earlier (aka XML-RPC or xmlrpc) and PHPXMLRPC (aka XML-RPC For PHP or php-xmlrpc) 1.1 and earlier, as used in products such as (1) WordPress, (2) Serendipity, (3) Drupal, (4) egroupware, (5) MailWatch, (6) TikiWiki, (7) phpWebSite, (8) Ampache, and others, allows remote attackers to execute arbitrary PHP code via an XML file, which is not properly sanitized before being used in an eval statement.

CWE-94Code Injection

How to fix

Remediation Available

drupalNVD

Affected:>= 4.6.0, < 4.6.2Fixed in:4.6.2CVE-2005-1921derived from NVD

tikiwiki cms\/groupwareNVD

Affected:< 1.8.5Fixed in:1.8.5CVE-2005-1921derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

79.07%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Related Vulnerabilities

Other CWE-94 (Code Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2017-9841	Critical	9.8	100%	KEV	Fix
CVE-2015-1635	Critical	9.8	100%	KEV	-
CVE-2025-3248	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2022-22954	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-22204	Medium	6.8	100%	KEV	Fix
CVE-2012-0158	High	8.8	100%	KEV	-

Common questions

How do I fix CVE-2005-1921?

Published advisories record a fix for 2 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2005-1921 being actively exploited?

Not that we know of. CVE-2005-1921 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 79.1% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

How severe is CVE-2005-1921?

CVE-2005-1921 has a CVSS v2 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2005-1921 affect?

Published advisories record a fix for drupal (NVD), tikiwiki cms\/groupware (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.