WordPress OSS Upload plugin <= 4.8.9 Cross Site Request Forgery (CSRF) Vulnerability

published 2025-03-24 19 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-7912

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits: 0; none known

Cross-Site Request Forgery (CSRF) vulnerability in Link OSS Upload oss-upload allows Cross Site Request Forgery.This issue affects OSS Upload: from n/a through <= 4.8.9.

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 19 mo ago (2025-03-25)

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Affected products

Link OSS Upload

Classification

Weakness

CWE-352 Cross-Site Request Forgery

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/Wordpress/Plugin/oss-upload/vulnerability/wordpress-oss-upload-4-8-9-cross-site-request-forgery-csrf
vdb-entry

Sources

CVE List CVE-2025-30598
NVD CVE-2025-30598

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary