CVE-2006-4758

4.6 MEDIUM 2% exploit odds No fix listed

What it is

phpBB 2.0.21 does not properly handle pathnames ending in %00, which allows remote authenticated administrative users to upload arbitrary files, as demonstrated by a query to admin/admin_board.php with an avatar_path parameter ending in .php%00.

At a glance

Exploitability: Can be exploited over the network with a login. Limited direct impact.
Exploit odds: 1.7% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2006-09-13 23:07 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 22:29 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 1.7% in the next 30 days (EPSS).
Severity: 4.6 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2006-09-13 23:07 UTC
Last modified: 2026-06-16 22:29 UTC
Exploit probability: 1.7% · EPSS, next 30 days
Record status: Modified

Affected

Phpbb Group Phpbb 2.0.21

Attack profile CVSS 2.0 · 4.6

Attack vector: Network
Complexity: High
Authentication: Single
Confidentiality: Partial
Integrity: Partial
Availability: Partial

Raw vector

AV:N/AC:H/Au:S/C:P/I:P/A:P

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2006-4758.md and follow it. Check whether this project is affected by CVE-2006-4758. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record