CVE-2023-3720 — The Upload Media By URL WordPress plugin before 1

The Upload Media By URL WordPress plugin before 1.0.8 does not have CSRF check when uploading files, which could allow attackers to make logged in admins upload files (including HTML containing JS code for users with the unfiltered_html capability) on their behalf.

01What is this vulnerability?

The Upload Media By URL WordPress plugin before 1.0.8 does not have CSRF check when uploading files, which could allow attackers to make logged in admins upload files (including HTML containing JS code for users with the unfiltered_html capability) on their behalf.

02Affected products

Vendor	Product	Versions
Unknown	Upload Media By URL	0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-08-30T14:22:00.303Z
• Last modified: 2025-05-05T12:38:18.941Z

09References

• wpscan.com — https://wpscan.com/vulnerability/16375a7f-0a9f-4961-8510-d047ffbf3954