How severe is CVE-2026-1884?

CVE-2026-1884 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-1884 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1884?

CVE-2026-1884 affects Zentao. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-1884?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-1884 have an EU (EUVD) identifier?

Yes. CVE-2026-1884 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5333.

When was CVE-2026-1884 published?

CVE-2026-1884 was published on 2026-02-04 and last updated on 2026-06-17.

CVE-2026-1884

CVE-2026-1884 is a medium-severity vulnerability in Zentao with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-918.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 5.8
CVSS v4: 2.0
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5333
Weakness: CWE-918
Affected product: Zentao
Published: 2026-02-04
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-1884?: 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.
How severe is CVE-2026-1884?: CVE-2026-1884 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-1884 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1884?: CVE-2026-1884 affects Zentao. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1884?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-1884 have an EU (EUVD) identifier?: Yes. CVE-2026-1884 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5333.
When was CVE-2026-1884 published?: CVE-2026-1884 was published on 2026-02-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:zentao:zentao:*:*:*:*:*:*:*:*

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