How severe is CVE-2026-4495?

CVE-2026-4495 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-2026-4495 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-4495?

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

Does CVE-2026-4495 have an EU (EUVD) identifier?

Yes. CVE-2026-4495 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13758.

When was CVE-2026-4495 published?

CVE-2026-4495 was published on 2026-03-20 and last updated on 2026-06-17.

CVE-2026-4495

CVE-2026-4495 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% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-13758
Weakness: CWE-79
Published: 2026-03-20
Last modified: 2026-06-17

Description

A security flaw has been discovered in atjiu pybbs 6.0.0. This impacts the function create of the file src/main/java/co/yiiu/pybbs/controller/api/CommentApiController.java. The manipulation results in cross site scripting. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.

Frequently asked questions

What is CVE-2026-4495?: A security flaw has been discovered in atjiu pybbs 6.0.0. This impacts the function create of the file src/main/java/co/yiiu/pybbs/controller/api/CommentApiController.java. The manipulation results in cross site scripting. It is possible to launch the attack remotely. The exploit has been released to the public and may be used for attacks.
How severe is CVE-2026-4495?: CVE-2026-4495 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-2026-4495 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-4495?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-4495 have an EU (EUVD) identifier?: Yes. CVE-2026-4495 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13758.
When was CVE-2026-4495 published?: CVE-2026-4495 was published on 2026-03-20 and last updated on 2026-06-17.

References

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CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

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