How severe is CVE-2025-54542?

CVE-2025-54542 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-54542 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-54542?

CVE-2025-54542 affects Opensolution Quick.cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-54542?

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

Does CVE-2025-54542 have an EU (EUVD) identifier?

Yes. CVE-2025-54542 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26071.

When was CVE-2025-54542 published?

CVE-2025-54542 was published on 2025-08-28 and last updated on 2026-06-17.

CVE-2025-54542

CVE-2025-54542 is a medium-severity vulnerability in Opensolution Quick.cms with a CVSS 3.x base score of 5.5. 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-598.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v4: 6.9
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-26071
Weakness: CWE-598
Affected product: Opensolution Quick.cms
Published: 2025-08-28
Last modified: 2026-06-17

Description

QuickCMS sends password and login via GET Request. This allows a local attacker with access to the victim's browser history to obtain the necessary credentials to log in as the user. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.8 was tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.

Frequently asked questions

What is CVE-2025-54542?: QuickCMS sends password and login via GET Request. This allows a local attacker with access to the victim's browser history to obtain the necessary credentials to log in as the user. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.8 was tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.
How severe is CVE-2025-54542?: CVE-2025-54542 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-54542 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-54542?: CVE-2025-54542 affects Opensolution Quick.cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-54542?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-54542 have an EU (EUVD) identifier?: Yes. CVE-2025-54542 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26071.
When was CVE-2025-54542 published?: CVE-2025-54542 was published on 2025-08-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:opensolution:quick.cms:6.8:*:*:*:*:*:*:*

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