{"vulnerability": "GHSA-4VC4-M8QH-G8JM", "sightings": [{"uuid": "121d0246-0b18-4022-8a27-f95eb065c214", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "GHSA-4vc4-m8qh-g8jm", "type": "seen", "source": "https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials/", "content": "", "creation_timestamp": "2025-03-12T20:07:18.000000Z"}, {"uuid": "5fca2fd8-67a9-4b67-82cf-8ffa6b783b84", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "GHSA-4vc4-m8qh-g8jm", "type": "seen", "source": "https://infosec.exchange/users/cR0w/statuses/114154846152927799", "content": "", "creation_timestamp": "2025-03-13T11:18:38.826351Z"}, {"uuid": "319d6543-2a92-4466-be73-f4573856d58b", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "GHSA-4VC4-M8QH-G8JM", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/7376", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2025-25291\n\ud83d\udd25 CVSS Score: 8 (cvssV4_0, Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U)\n\ud83d\udd39 Description: ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 and 1.18.0 due to a parser differential. ReXML and Nokogiri parse XML differently; the parsers can generate entirely different document structures from the same XML input. That allows an attacker to be able to execute a Signature Wrapping attack. This issue may lead to authentication bypass. Versions 1.12.4 and 1.18.0 fix the issue.\n\ud83d\udccf Published: 2025-03-12T20:16:12.181Z\n\ud83d\udccf Modified: 2025-03-12T20:24:28.868Z\n\ud83d\udd17 References:\n1. https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-4vc4-m8qh-g8jm\n2. https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv\n3. https://github.com/SAML-Toolkits/ruby-saml/commit/e76c5b36bac40aedbf1ba7ffaaf495be63328cd9\n4. https://github.com/SAML-Toolkits/ruby-saml/commit/e9c1cdbd0f9afa467b585de279db0cbd0fb8ae97\n5. https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4\n6. https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0", "creation_timestamp": "2025-03-12T20:42:37.000000Z"}]}