CVE-2026-1884: A weakness has been identified in ZenTao up to 21.7.6-85642

Q: How do I fix CVE-2026-1884?

zentao: upgrade to newer than 21.7.6. Exact commands for each OS are on this page.

Q: Is CVE-2026-1884 being exploited?

CVE-2026-1884 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-1884 affect?

CVE-2026-1884 affects zentao. Severity is medium (CVSS 4.7). A weakness has been identified in ZenTao up to 21.7.6-85642. The impacted element is the function fetchHook of the file module/webhook/model.php of the component Webhook Module. This manipulation causes server-side request forgery. The atta

Q: How urgent is CVE-2026-1884?

Priority 31/100. Public exploit reference

Routine

MEDIUM 4.7UPGRADE

CVE-2026-1884 is a medium-severity flaw (CVSS 4.7) affecting zentao. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A weakness has been identified in ZenTao up to 21.7.6-85642. The impacted element is the function fetchHook of the file module/webhook/model.php of the component Webhook Module. This manipulation causes server-side request forgery. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.7 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-02-04
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: zentao

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-04 22:15 UTCPublished CVE record published
2026-06-17 10:16 UTCUpdated Record last modified

zentao zentao UPGRADE

Affected: <= 21.7.6

Fixed in: newer than 21.7.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy zentao || rpm -q zentao || zentao --version

2. UPGRADE to newer than 21.7.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade zentao

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade zentao

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-1884?

zentao: upgrade to newer than 21.7.6. Exact commands for each OS are on this page.

Is CVE-2026-1884 being exploited?

CVE-2026-1884 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-1884 affect?

CVE-2026-1884 affects zentao. Severity is medium (CVSS 4.7). A weakness has been identified in ZenTao up to 21.7.6-85642. The impacted element is the function fetchHook of the file module/webhook/model.php of the component Webhook Module. This manipulation causes server-side request forgery. The atta

How urgent is CVE-2026-1884?

Priority 31/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-13789 MEDIUM 6.3 UPGRADE A vulnerability was found in ZenTao up to 21.7.6-8564
CVE-2025-13787 MEDIUM 5.4 UPGRADE A flaw has been found in ZenTao up to 21.7.6-8564
CVE-2026-2552 MEDIUM 5.5 UPGRADE A vulnerability was identified in ZenTao up to 21.7.8
CVE-2026-2551 MEDIUM 5.4 UPGRADE A vulnerability was determined in ZenTao up to 21.7.8
CVE-2025-5114 MEDIUM 6.3 DOWNGRADE A vulnerability has been found in easysoft zentaopms 21.5_20250307 and classified as critical

References

← Back to latest CVEs