How severe is CVE-2026-5249?

CVE-2026-5249 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-5249 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-5249?

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

Does CVE-2026-5249 have an EU (EUVD) identifier?

Yes. CVE-2026-5249 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17769.

When was CVE-2026-5249 published?

CVE-2026-5249 was published on 2026-04-01 and last updated on 2026-06-17.

CVE-2026-5249

CVE-2026-5249 is a low-severity vulnerability with a CVSS 3.x base score of 3.5. 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-79.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 4.0
CVSS v4: 2.0
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-17769
Weakness: CWE-79
Published: 2026-04-01
Last modified: 2026-06-17

Description

A vulnerability was found in gougucms 4.08.18. This impacts an unknown function of the file \gougucms-master\app\admin\view\user\record.html of the component Record Endpoint. Performing a manipulation of the argument value.content results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-5249?: A vulnerability was found in gougucms 4.08.18. This impacts an unknown function of the file \gougucms-master\app\admin\view\user\record.html of the component Record Endpoint. Performing a manipulation of the argument value.content results in cross site scripting. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-5249?: CVE-2026-5249 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-5249 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-5249?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5249 have an EU (EUVD) identifier?: Yes. CVE-2026-5249 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-17769.
When was CVE-2026-5249 published?: CVE-2026-5249 was published on 2026-04-01 and last updated on 2026-06-17.

References

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

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