{"id":"CVE-2025-53625","aliases":["GHSA-7pgw-q3qp-6pgq"],"url":"https://o3.security/vulnerability/CVE-2025-53625","summary":"DynamicPageList3 exposes hidden/suppressed usernames","details":"### Summary\nSeveral `#dpl` parameters can leak usernames that have been hidden using revision deletion, suppression, or the `hideuser` block flag.\n\n### Details\nThe parameters `adduser`, `addauthor`, and `addlasteditor` output the page creator or last editor using the `%USER%` placeholder. These display the actual username, even when that name has been hidden using revision deletion, suppression (oversight), or `hideuser`.\n\nThe `%CONTRIBUTOR%` placeholder, used with `addcontribution`, behaves similarly and also reveals hidden usernames.\n\nIn addition, the following parameters can expose suppressed usernames when combined with `%USER%` or similar output placeholders:\n- `lastrevisionbefore`\n- `allrevisionsbefore`\n- `firstrevisionsince`\n- `allrevisionssince`\n\nThese parameters reference specific revisions and allow output of user-related metadata. If a username has been hidden from those revisions, it may still appear in the output.\n\nFurther, the parameters `createdby`, `notcreatedby`, `modifiedby`, `notmodifiedby`, `lastmodifiedby`, and `notlastmodifiedby` accept usernames as input. When the correct (suppressed) username is used, the query may return matching pages or edits. This can reveal the presence and association of a hidden identity, even if not displayed directly. However, this is a more indirect exposure than the output parameters mentioned above.\n\n### Proof of Concept\n\n1. Create a page while logged in as a user.\n2. Revision delete or suppress the username from the page history.\n3. Use a DPL query with one of the affected parameters.\n4. The output reveals the hidden username.\n\n#### Example\n\nThe following query reveals the suppressed username `Example user`:\n\n```wikitext\n{{#dpl:\n| title = File:Example.png\n| addauthor = true\n| format = ,%USER%,,\n}}\n```\n\nSimilar behavior occurs using parameters like `lastrevisionbefore` with `%USER%` in the `format` string.\n\n### Impact\nThis issue causes the exposure of usernames that were intentionally hidden by administrators. It directly undermines revision deletion, user suppression, and block-related privacy measures. In some cases, usernames can be revealed both directly through output and indirectly through query behavior.","published":"2025-07-10T18:31:22.996Z","modified":"2026-08-12T03:51:16.705244106Z","cvss":null,"epss":{"score":0.00447,"percentile":0.37016,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"universal-omega/dynamic-page-list3","fixedVersion":"3.6.4"}],"fix":{"url":"https://github.com/Universal-Omega/DynamicPageList3/commit/a3dae0c89fb4214390c29ceffa23bbe2099986d6","label":"Universal-Omega/DynamicPageList3@a3dae0c"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53625.json"},{"type":"ADVISORY","url":"https://github.com/Universal-Omega/DynamicPageList3/security/advisories/GHSA-7pgw-q3qp-6pgq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-53625"},{"type":"FIX","url":"https://github.com/Universal-Omega/DynamicPageList3/commit/a3dae0c89fb4214390c29ceffa23bbe2099986d6"},{"type":"PACKAGE","url":"https://github.com/Universal-Omega/DynamicPageList3"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:16.705244106Z"}}