CVE-2025-13789: ZenTao · Server-Side Request Forgery
Affects ZenTaoSource CVE Database V5
Public exploit available · CVSS 5.3 Medium : upgrade to 21.7.6 as a priority.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 21.7.6
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 30 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade zentao/zentao to 21.7.6.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubzentao/zentaopkg:github/zentao/zentaoOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
- Upgrade ZenTao installations immediately to version 21.7.6 or later to apply the official patch addressing the SSRF vulnerability.
- Implement strict egress filtering on servers running ZenTao to restrict outbound HTTP/HTTPS requests only to trusted destinations, minimizing SSRF exploitation scope.
- Employ network segmentation to isolate application servers from sensitive internal services and metadata endpoints.
- Monitor application logs and network traffic for unusual outbound requests originating from ZenTao servers, which may indicate exploitation attempts.
- Conduct regular security assessments and penetration tests focusing on SSRF and related vulnerabilities in web applications.
- Educate development and operations teams about SSRF risks and secure coding practices to prevent similar issues in custom integrations or plugins.
Description
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.
References
- vuldb.com (opens in a new tab)
- vuldb.com (opens in a new tab)
- vuldb.com (opens in a new tab)
- github.com/ez-lbz/ez-lbz.github.io/issues/2 (opens in a new tab)
- github.com/ez-lbz/ez-lbz.github.io/issues/2 (opens in a new tab)
- github.com/ez-lbz/ez-lbz.github.io/issues/2 (opens in a new tab)
- zentao.net/extension-viewext-6.html (opens in a new tab)