CVE-2009-2335

unknown

Published — · Modified —

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

1.0

Description

WordPress and WordPress MU before 2.8.1 exhibit different behavior for a failed login attempt depending on whether the user account exists, which allows remote attackers to enumerate valid usernames. NOTE: the vendor reportedly disputes the significance of this issue, indicating that the behavior exists for "user convenience."

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-17702 webapps php

Tiago Ferreira & Heyder Andrade · 2011-08-20

WordPress Plugin Block-Spam-By-Math-Reloaded - Bypass

Source code queued for fetch — refresh in a moment.

Metasploit modules

auxiliary_scanner/http/wordpress_login_enum rank 300

WordPress Brute Force and User Enumeration Utility

Source fetch failed: fetch_error — view the original via the link above.

OS impact

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2.8.3-1`
sid	Fixed	`2.8.3-1`
forky	Fixed	`2.8.3-1`
bullseye	Fixed	`2.8.3-1`
bookworm	Fixed	`2.8.3-1`

References

https://security-tracker.debian.org/tracker/CVE-2009-2335

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.