CVE-2025-13789

A vulnerability was found in ZenTao up to 21.7.6-8564. This affects the function makeRequest of the file module/ai/model.php. The manipulation of the argument Base results in server-side request forgery. The attack can be launched remotely. The exploit has been made public and could be used. Upgrading to version 21.7.6 mitigates this issue. It is suggested to upgrade the affected component.

What this means for your business

It affects Zentao. It matters if your company, or a supplier that handles your data, runs it.
Code showing how to exploit it has been published, but real attacks have not been confirmed.
An attacker can use it remotely, over a network, with an ordinary user login, and without anyone at your company clicking anything.
FIRST's prediction model gives it a 0.3% chance of attack attempts being seen in the next 30 days, ranking above 22% of all known flaws.

What to do

1Check whether your company or your suppliers run Zentao, and which version. The affected versions are listed further down this page.
2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

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Scoring

CVSS: 6.3 (v3.1)
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4: 2.1
Weakness: CWE-918
Assigned by: cna@vuldb.com

Dates

Published: 2025-11-30
Last modified: 2026-09-03
Sources: NVD

Affected products

Zentao Zentao- 21.7.6

As listed in the NVD configuration data. Not a statement about your estate.