{"id":"CVE-2025-70129","aliases":["EUVD-2025-208520","GHSA-4639-47cp-327m","UBUNTU-CVE-2025-70129"],"status":"published","title":"If the anti spam-captcha functionality in PluXml versions 5.8.22 and earlier is enabled, a...","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 \u0026 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.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.00333,"percentile":0.26807,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-804"],"published":"2026-03-10T00:00:00Z","modified":"2026-10-28T02:30:43Z","affected":[{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"pluxml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4-1","5.4-1ubuntu1"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"pluxml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.5-2"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"pluxml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.6-1"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"pluxml","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.6-1"]}],"products":[{"vendor":"pluxml","product":"pluxml"}],"references":[{"url":"https://youtu.be/dD2olE4yMqY","tags":["Exploit","web"]},{"url":"https://github.com/forest4x/vuln-research-public/blob/main/CVE-2025-70129.pdf","tags":["Exploit","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-70129","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-4639-47cp-327m"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/70xxx/CVE-2025-70129.json","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2025-70129","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2025-70129","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2025-70129","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 \u0026 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.","status":"published","published":"2026-03-10T00:00:00Z","modified":"2026-03-11T14:45:57.216Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-804"],"updated_at":"2026-11-02T14:32:25.186422Z"}],"euvd":[{"id":"EUVD-2025-208520","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 \u0026 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.","status":"published","published":"2026-03-10T00:00:00Z","modified":"2026-03-11T14:45:57Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:25:37.250097Z"}],"ghsa":[{"id":"GHSA-4639-47cp-327m","title":"If the anti spam-captcha functionality in PluXml versions 5.8.22 and earlier is enabled, a...","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 \u0026 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.","status":"published","published":"2026-03-10T21:32:17Z","modified":"2026-03-11T15:31:47Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-804"],"updated_at":"2026-11-02T15:06:33.767052Z"}],"nvd":[{"id":"CVE-2025-70129","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 \u0026 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.","status":"published","published":"2026-03-10T20:16:20.54Z","modified":"2026-06-17T10:03:09.73Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-804"],"updated_at":"2026-11-02T14:12:01.641503Z"}],"osv":[{"id":"CVE-2025-70129","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 \u0026 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.","status":"published","published":"2026-03-10T00:00:00Z","modified":"2026-10-28T02:30:43.220140898Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:52.859856Z"},{"id":"UBUNTU-CVE-2025-70129","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 \u0026 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.","status":"published","published":"2026-03-10T20:16:00Z","modified":"2026-03-19T08:26:17.99614Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T16:55:55.926217Z"}]}}