CVE-2025-2935

Anti-Spam: Spam Protection | Block Spam Users, Comments, Forms <= 2024.7 - Cross-Site Request Forgery to Multiple Administrative Actions

2025-06-05 17:43

Strategic Overview

Status: Patched in 2025
Affected Plugin: Stop Spammers Classic
Affected Version: <= 2024.7
CVSS: 5.4Medium
Weakness type: CWE-352 · Cross-Site Request Forgery (CSRF)
CVE: CVE-2025-2935

View all Stop Spammers Classic vulnerabilities

At a glance

CVE-2025-2935 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Stop Spammers Classic WordPress plugin, affecting versions <= 2024.7. It carries a CVSS score of 5.4 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2025; sites on affected versions should update now. Disclosed June 2025, reported by Noah Stead (TurtleBurg).

Vulnerability Overview

The Anti-Spam: Spam Protection | Block Spam Users, Comments, Forms plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2024.7. This is due to missing or incorrect nonce validation in the 'ss_option_maint.php' and 'ss_user_filter_list' files. This makes it possible for unauthenticated attackers to delete pending comments, and re-enable a previously blocked user via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

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.

CWE-352: Cross-Site Request Forgery (CSRF)

Stop Spammers Classic <= 2024.7 carries this weakness at and, and reaching it takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.

An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Stop Spammers Classic the fix is 2025: builds <= 2024.7 are affected, anything from 2025 onward is not.

Remediation

Update to version 2025, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Stop Spammers Classic: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Stop Spammers Classic 2025 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2025-2935 https://www.wordfence.com/threat-intel/vulnerabilities/id/aefb192a-ed42-44a9-bbd1-5906909a419c https://nvd.nist.gov/vuln/detail/CVE-2025-2935

Related records

Same weakness class

Other vulnerabilities in Stop Spammers Classic

CVSS Vector

5.4

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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