How severe is CVE-2026-2943?

CVE-2026-2943 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-2943 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-2026-2943?

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

Does CVE-2026-2943 have an EU (EUVD) identifier?

Yes. CVE-2026-2943 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7689.

When was CVE-2026-2943 published?

CVE-2026-2943 was published on 2026-02-22 and last updated on 2026-06-17.

CVE-2026-2943

CVE-2026-2943 is a medium-severity vulnerability with a CVSS 3.x base score of 4.3. 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: Medium (CVSS 3.x base score 4.3)
CVSS v2: 5.0
CVSS v4: 2.1
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7689
Weakness: CWE-79
Published: 2026-02-22
Last modified: 2026-06-17

Description

A vulnerability was identified in SapneshNaik Student Management System up to f4b4f0928f0b5551a28ee81ae7e7fe47d9345318. This impacts an unknown function of the file index.php. Such manipulation of the argument Error leads to cross site scripting. The attack can be launched remotely. The exploit is publicly available and might be used. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-2943?: A vulnerability was identified in SapneshNaik Student Management System up to f4b4f0928f0b5551a28ee81ae7e7fe47d9345318. This impacts an unknown function of the file index.php. Such manipulation of the argument Error leads to cross site scripting. The attack can be launched remotely. The exploit is publicly available and might be used. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-2943?: CVE-2026-2943 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-2943 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-2026-2943?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-2943 have an EU (EUVD) identifier?: Yes. CVE-2026-2943 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7689.
When was CVE-2026-2943 published?: CVE-2026-2943 was published on 2026-02-22 and last updated on 2026-06-17.

References

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

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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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