CommentLuv <= 3.0.4 - Server Side Request Forgery via do_click
Strategic Overview
- Status
- Unpatched
- Affected Plugin
- CommentLuv
- Affected Version
<= 3.0.4- CVSS
- 8.2High
- Weakness type
- CWE-918 · Server-Side Request Forgery (SSRF)
- CVE
CVE-2023-49159
At a glance
CVE-2023-49159 is a high-severity Server-Side Request Forgery (SSRF) vulnerability in the CommentLuv WordPress plugin, affecting versions <= 3.0.4. It carries a CVSS score of 8.2 (reachable over the network; low attack complexity; high integrity impact). Exploitation requires no authentication. No fixed release has been reported yet; treat installations running this software as exposed. Disclosed November 2023, reported by Yuchen Ji.
Vulnerability Overview
The CommentLuv plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 3.0.4 via the do_click 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 and modify 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. A successful exploit has high impact on integrity.
CWE-918: Server-Side Request Forgery (SSRF)
Reaching this weakness in CommentLuv <= 3.0.4 takes a caller who can reach the endpoint. 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. No fixed build of this plugin is recorded for CommentLuv yet, so installs running <= 3.0.4 stay exposed until the vendor ships one.
Remediation
No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
How does WordSec protect against this?
The attempt arrives as an ordinary request to CommentLuv: WordSec's web application firewall inspects request payloads before WordPress loads them. No patched version is recorded yet, which is the case where a filtering layer matters most, because there is nothing to update to.
- Firewall
- Alerts
External References
Related records
Other vulnerabilities in CommentLuv
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