{"id":"CVE-2023-26852","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-26852","generatedAt":"2026-10-22T22:07:02.080Z","title":"An arbitrary file upload vulnerability in the upload plugin of Textpattern v4.8.8 and below allows attackers to execute arbitrary code by uploading a crafted PHP file.","description":"An arbitrary file upload vulnerability in the upload plugin of Textpattern v4.8.8 and below allows attackers to execute arbitrary code by uploading a crafted PHP file.","published":"2023-04-12T17:15:08.000Z","lastModified":"2026-06-17T05:43:53.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":7.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-434"],"affected":["textpattern/textpattern"],"epss":{"score":0.01994,"percentile":0.80506,"date":"2026-10-21","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.99%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://drive.google.com/drive/folders/1x55FGWZydBRxFyTVIAL1ynnk1X7gfIq9?usp=sharing","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/leekenghwa/CVE-2023-26852-Textpattern-v4.8.8-and-","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/textpattern/textpattern","tags":["Product"],"source":"cve@mitre.org"},{"url":"https://drive.google.com/drive/folders/1x55FGWZydBRxFyTVIAL1ynnk1X7gfIq9?usp=sharing","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/leekenghwa/CVE-2023-26852-Textpattern-v4.8.8-and-","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/textpattern/textpattern","tags":["Product"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-26852","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."}