{"id":"CVE-2025-45525","aliases":["EUVD-2025-18558","GHSA-64x7-m7rh-9m83"],"status":"disputed","title":"Withdrawn Advisory: microlight.js has a null pointer dereference vulnerability","description":"A NULL pointer dereference vulnerability has been identified in the JavaScript library microlight version 0.0.7, a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash. NOTE: this is disputed by multiple parties because there is no common scenario in which an adversary can insert those non-standard values.","severity":{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00146,"percentile":0.03898,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2025-06-17T00:00:00Z","modified":"2026-09-10T03:50:24Z","products":[{"vendor":"asvd","product":"microlight"}],"references":[{"url":"https://gist.github.com/Rootingg/843368931f70886bed3cf982f10a4424","tags":["web"]},{"url":"https://github.com/github/advisory-database/pull/5730","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-45525","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-64x7-m7rh-9m83"},{"url":"https://github.com/asvd/microlight","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-45525","description":"A NULL pointer dereference vulnerability has been identified in the JavaScript library microlight version 0.0.7, a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash. NOTE: this is disputed by multiple parties because there is no common scenario in which an adversary can insert those non-standard values.","status":"disputed","published":"2025-06-17T00:00:00Z","modified":"2025-08-26T18:51:45.895Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:32:36.385228Z"}],"euvd":[{"id":"EUVD-2025-18558","description":"A NULL pointer dereference vulnerability has been identified in the JavaScript library microlight version 0.0.7, a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash. NOTE: this is disputed by multiple parties because there is no common scenario in which an adversary can insert those non-standard values.","status":"published","published":"2025-06-17T00:00:00Z","modified":"2025-08-26T18:51:45Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T20:31:52.651465Z"}],"ghsa":[{"id":"GHSA-64x7-m7rh-9m83","title":"Withdrawn Advisory: microlight.js has a null pointer dereference vulnerability","description":"## Withdrawn Advisory\nThis advisory has been withdrawn because a website owner has to set CSS color values. The proof of concept doesn't demonstrate how a malicious user who is not the website owner can cause an application crash. This link has been maintained to preserve external references.\n\n## Original Description\nA null pointer dereference vulnerability was discovered in microlight.js (version 0.0.7), a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash.","status":"withdrawn","published":"2025-06-17T21:32:30Z","modified":"2025-06-20T14:12:45Z","cvss":[{"version":"4.0","score":1.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","level":"low"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:38:47.835488Z"}],"nvd":[{"id":"CVE-2025-45525","description":"A NULL pointer dereference vulnerability has been identified in the JavaScript library microlight version 0.0.7, a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash. NOTE: this is disputed by multiple parties because there is no common scenario in which an adversary can insert those non-standard values.","status":"disputed","published":"2025-06-17T20:15:32.15Z","modified":"2026-06-17T09:25:34.247Z","cvss":[{"version":"3.1","score":2.9,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:11:13.247441Z"}],"osv":[{"id":"GHSA-64x7-m7rh-9m83","title":"Withdrawn Advisory: microlight.js has a null pointer dereference vulnerability","description":"## Withdrawn Advisory\nThis advisory has been withdrawn because a website owner has to set CSS color values. The proof of concept doesn't demonstrate how a malicious user who is not the website owner can cause an application crash. This link has been maintained to preserve external references.\n\n## Original Description\nA null pointer dereference vulnerability was discovered in microlight.js (version 0.0.7), a lightweight syntax highlighting library. When processing elements with non-standard CSS color values, the library fails to validate the result of a regular expression match before accessing its properties, leading to an uncaught TypeError and potential application crash.","status":"withdrawn","published":"2025-06-17T21:32:30Z","modified":"2026-09-10T03:50:24.889444917Z","cvss":[{"version":"4.0","score":1.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","level":"low"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T15:46:39.266402Z"}]}}