How severe is CVE-2026-7501?

CVE-2026-7501 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-2026-7501 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-7501?

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

Does CVE-2026-7501 have an EU (EUVD) identifier?

Yes. CVE-2026-7501 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26438.

When was CVE-2026-7501 published?

CVE-2026-7501 was published on 2026-04-30 and last updated on 2026-06-17.

CVE-2026-7501

CVE-2026-7501 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% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26438
Weakness: CWE-79
Published: 2026-04-30
Last modified: 2026-06-17

Description

A weakness has been identified in LinkStackOrg LinkStack up to 4.8.6. Impacted is the function editPage of the file app/Http/Controllers/UserController.php. Executing a manipulation of the argument pageDescription can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through a pull request but has not reacted yet.

Frequently asked questions

What is CVE-2026-7501?: A weakness has been identified in LinkStackOrg LinkStack up to 4.8.6. Impacted is the function editPage of the file app/Http/Controllers/UserController.php. Executing a manipulation of the argument pageDescription can lead to cross site scripting. It is possible to launch the attack remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through a pull request but has not reacted yet.
How severe is CVE-2026-7501?: CVE-2026-7501 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-2026-7501 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-7501?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-7501 have an EU (EUVD) identifier?: Yes. CVE-2026-7501 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26438.
When was CVE-2026-7501 published?: CVE-2026-7501 was published on 2026-04-30 and last updated on 2026-06-17.

References

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

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CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
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CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
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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