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Vulnerability record · CVE-2025-70129 · published 10 March 2026

CVE-2025-70129: Pluxml vulnerability

Pluxml · Pluxml

If the anti spam-captcha functionality in PluXml versions 5.8.22 and earlier is enabled, a captcha challenge is generated with a format that can be automatically recognized for articles, such that an automated script is able to solve this anti-spam mechanism trivially and publish spam comments. The details of captcha challenge are exposed within document body of articles with comments & anti spam-captcha functionalities enabled, including "capcha-letter", "capcha-word" and "capcha-token" which can be used to construct a valid post request to publish a comment. As such, attackers can flood articles with automated spam comments, especially if there are no other web defenses available.

5.3 CVSS 3.1 Medium EPSS 0.29% · top 80.7% CWE-804 · CWE-804
5.3CVSS 3.1 base score
0.29%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

If the anti spam-captcha functionality in PluXml versions 5.8.22 and earlier is enabled, a captcha challenge is generated with a format that can be automatically recognized for articles, such that an automated script is able to solve this anti-spam mechanism trivially and publish spam comments. The details of captcha challenge are exposed within document body of articles with comments & anti spam-captcha functionalities enabled, including "capcha-letter", "capcha-word" and "capcha-token" which can be used to construct a valid post request to publish a comment. As such, attackers can flood articles with automated spam comments, especially if there are no other web defenses available.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/forest4x/vuln-research-public/blob/main/CVE-2025-70129.pdf ExploitThird Party Advisory
https://youtu.be/dD2olE4yMqY Exploit

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-18185Pluxml code injection vulnerabilityclass.plx.admin.php in PluXml 5.7 allows attackers to execute arbitrary PHP code by modify the configuration file in a linux environment.EPSS 1.8%8.8CVE-2024-22636Pluxml vulnerabilityPluXml Blog v5.8.9 was discovered to contain a remote code execution (RCE) vulnerability in the Static Pages feature. This vulnerability is exploited…EPSS 1.3%8.8CVE-2022-25018Pluxml code injection vulnerabilityPluxml v5.8.7 was discovered to allow attackers to execute arbitrary code via crafted PHP code inserted into static pages.EPSS 2.7%7.5CVE-2012-2227Pluxml path traversal vulnerabilityDirectory traversal vulnerability in update/index.php in PluXml before 5.1.6 allows remote attackers to include and execute arbitrary local files via…EPSS 9.8%7.5CVE-2007-3432Pluxml vulnerabilityUnrestricted file upload vulnerability in admin/images.php in Pluxml 0.3.1 allows remote attackers to upload and execute arbitrary PHP code via a .jp…EPSS 8.2%6.5CVE-2025-67436Pluxml command injection vulnerabilityAuthenticated Remote Code Execution (RCE) in PluXml CMS 5.8.22 allows an attacker with administrator panel access to inject a malicious PHP webshell …EPSS 0.59%6.1CVE-2025-70128Pluxml cross-site scripting vulnerabilityA Stored Cross-Site Scripting (XSS) vulnerability exists in the PluXml article comments feature for PluXml versions 5.8.22 and earlier. The applicati…EPSS 0.22%5.4CVE-2022-25020Pluxml cross-site scripting vulnerabilityA cross-site scripting (XSS) vulnerability in Pluxml v5.8.7 allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the th…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2025-70129), CISA KEV, FIRST EPSS (scores of 2026-10-06). This page is refreshed as NVD updates the record.