CVE-2025-2109

WP Compress <= 6.30.15 - Unauthenticated Server-Side Request Forgery via init Function

2025-03-24 21:29

Strategic Overview

Status: Patched in 6.30.16
Affected Plugin: WP Compress – Instant Performance & Speed Optimization
Affected Version: <= 6.30.15
CVSS: 5.8Medium
Weakness type: CWE-918 · Server-Side Request Forgery (SSRF)
CVE: CVE-2025-2109

View all WP Compress – Instant Performance & Speed Optimization vulnerabilities

At a glance

CVE-2025-2109 is a medium-severity Server-Side Request Forgery (SSRF) vulnerability in the WP Compress WordPress plugin, affecting versions <= 6.30.15. It carries a CVSS score of 5.8 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 6.30.16; sites on affected versions should update now. Disclosed March 2025, reported by mikemyers.

Vulnerability Overview

The WP Compress – Instant Performance & Speed Optimization plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 6.30.15 via the init() function. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application and can be used to query information from internal services.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.

CWE-918: Server-Side Request Forgery (SSRF)

WP Compress <= 6.30.15 carries this weakness at init(), and reaching it takes no account at all. Server-side request forgery means the application fetches a URL supplied by the caller, turning the server into a proxy for requests the attacker could not make directly.

The request originates from inside the hosting network, which is how these flaws reach cloud metadata endpoints, internal admin panels and services that trust local traffic. For WP Compress the fix is 6.30.16: builds <= 6.30.15 are affected, anything from 6.30.16 onward is not.

Remediation

Update to version 6.30.16, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: WP Compress 6.30.16 closes this, and updating the plugin is the step that ends it.

Firewall
Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-2109 https://www.wordfence.com/threat-intel/vulnerabilities/id/10b9d703-de9d-472a-bdfb-bc9a41bf375e https://nvd.nist.gov/vuln/detail/CVE-2025-2109

Related records

Other vulnerabilities in WP Compress – Instant Performance & Speed Optimization

CVSS Vector

5.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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