{"id":"CVE-2025-58353","aliases":["EUVD-2025-26866"],"status":"published","title":"Promptcraft Forge Studio: Complete Sanitizer Bypass Enables XSS via Overlapping Patterns","description":"Promptcraft Forge Studio is a toolkit for evaluating, optimizing, and maintaining  LLM-powered applications. All versions of Promptcraft Forge Studio sanitize user input using regex blacklists such as r`eplace(/javascript:/gi, '')`. Because the package uses multi-character tokens and each replacement is applied only once, removing one occurrence can create a new dangerous token due to overlap. The “sanitized” value may still contain an executable payload when used in href/src (or injected into the DOM). There is currently no fix for this issue.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00241,"percentile":0.15366,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-184","CWE-20","CWE-79"],"published":"2025-09-04T19:39:23Z","modified":"2026-06-17T09:44:20Z","products":[{"vendor":"marcelotessaro","product":"promptcraft-forge-studio"}],"references":[{"url":"https://github.com/MarceloTessaro/promptcraft-forge-studio/security/advisories/GHSA-mv25-7v95-q3pf","tags":["x_refsource_CONFIRM"]}],"sources":{"cve":[{"id":"CVE-2025-58353","title":"Promptcraft Forge Studio: Complete Sanitizer Bypass Enables XSS via Overlapping Patterns","description":"Promptcraft Forge Studio is a toolkit for evaluating, optimizing, and maintaining  LLM-powered applications. All versions of Promptcraft Forge Studio sanitize user input using regex blacklists such as r`eplace(/javascript:/gi, '')`. Because the package uses multi-character tokens and each replacement is applied only once, removing one occurrence can create a new dangerous token due to overlap. The “sanitized” value may still contain an executable payload when used in href/src (or injected into the DOM). There is currently no fix for this issue.","status":"published","published":"2025-09-04T19:39:23.567Z","modified":"2025-09-04T20:13:09.147Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-79","CWE-20","CWE-184"],"updated_at":"2026-11-02T14:32:37.351404Z"}],"euvd":[{"id":"EUVD-2025-26866","description":"Promptcraft Forge Studio is a toolkit for evaluating, optimizing, and maintaining  LLM-powered applications. All versions of Promptcraft Forge Studio sanitize user input using regex blacklists such as r`eplace(/javascript:/gi, '')`. Because the package uses multi-character tokens and each replacement is applied only once, removing one occurrence can create a new dangerous token due to overlap. The “sanitized” value may still contain an executable payload when used in href/src (or injected into the DOM). There is currently no fix for this issue.","status":"published","published":"2025-09-04T19:39:23Z","modified":"2025-09-04T20:13:09Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high"}],"updated_at":"2026-11-02T20:31:46.9428Z"}],"nvd":[{"id":"CVE-2025-58353","description":"Promptcraft Forge Studio is a toolkit for evaluating, optimizing, and maintaining  LLM-powered applications. All versions of Promptcraft Forge Studio sanitize user input using regex blacklists such as r`eplace(/javascript:/gi, '')`. Because the package uses multi-character tokens and each replacement is applied only once, removing one occurrence can create a new dangerous token due to overlap. The “sanitized” value may still contain an executable payload when used in href/src (or injected into the DOM). There is currently no fix for this issue.","status":"published","published":"2025-09-04T20:15:39.42Z","modified":"2026-06-17T09:44:20.887Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-20","CWE-79","CWE-184"],"updated_at":"2026-11-02T14:11:27.145738Z"}]}}