{"id":"CVE-2021-25094","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-25094","generatedAt":"2026-11-05T00:22:02.225Z","title":"By adding a PHP shell with a filename starting with a dot \".\", this can bypass extension control implemented in the plugin.","description":"The Tatsu WordPress plugin before 3.3.12 add_custom_font action can be used without prior authentication to upload a rogue zip file which is uncompressed under the WordPress's upload directory. By adding a PHP shell with a filename starting with a dot \".\", this can bypass extension control implemented in the plugin. Moreover, there is a race condition in the zip extraction process which makes the shell file live long enough on the filesystem to be callable by an attacker.","published":"2022-04-25T16:16:07.000Z","lastModified":"2026-06-17T03:41:27.000Z","status":"Modified","sourceIdentifier":"contact@wpscan.com","cvss":{"version":"3.1","score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-306"],"affected":["brandexponents/tatsu"],"epss":{"score":0.83232,"percentile":0.99679,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2025-04-18","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":52260,"kind":"exploit","title":"Tatsu 3.3.11 - Unauthenticated RCE","url":"https://www.exploit-db.com/exploits/52260","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/52260.py","file":"exploits/php/webapps/52260.py","published":"2025-04-18","added":"2025-04-18","updated":"2025-04-18","author":"Milad karimi","type":"webapps","platform":"php","port":null,"verified":false,"codes":["CVE-2021-25094"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 83.2%, higher than 100% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"contact@wpscan.com"},{"url":"https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/","tags":["Exploit","Third Party Advisory"],"source":"contact@wpscan.com"},{"url":"https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcd","tags":["Exploit","Third Party Advisory"],"source":"contact@wpscan.com"},{"url":"http://packetstormsecurity.com/files/167190/WordPress-Tatsu-Builder-Remote-Code-Execution.html","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://darkpills.com/wordpress-tatsu-builder-preauth-rce-cve-2021-25094/","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://packetstorm.news/files/id/190566/","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://wpscan.com/vulnerability/fb0097a0-5d7b-4e5b-97de-aacafa8fffcd","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/52260","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-25094","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}