{"cve":"CVE-2023-26852","nvd":{"published":"2023-04-12T17:15:07.537","modified":"2026-06-17T05:43:53.393","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","score":7.2},"cwes":["CWE-434"],"references":["https://drive.google.com/drive/folders/1x55FGWZydBRxFyTVIAL1ynnk1X7gfIq9?usp=sharing","https://github.com/leekenghwa/CVE-2023-26852-Textpattern-v4.8.8-and-","https://github.com/textpattern/textpattern","https://drive.google.com/drive/folders/1x55FGWZydBRxFyTVIAL1ynnk1X7gfIq9?usp=sharing","https://github.com/leekenghwa/CVE-2023-26852-Textpattern-v4.8.8-and-"],"products":["textpattern:textpattern"],"source":"nvd","synced_at":"2026-10-19T21:38:05.473481323+00:00"},"epss":{"cve":"CVE-2023-26852","score":0.01994,"percentile":0.80692,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}