How severe is CVE-2025-9980?

CVE-2025-9980 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-9980 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-9980?

CVE-2025-9980 affects Opensolution Quick.cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-9980?

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

Does CVE-2025-9980 have an EU (EUVD) identifier?

Yes. CVE-2025-9980 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35662.

When was CVE-2025-9980 published?

CVE-2025-9980 was published on 2025-10-23 and last updated on 2026-06-17.

CVE-2025-9980

CVE-2025-9980 is a medium-severity vulnerability in Opensolution Quick.cms with a CVSS 3.x base score of 4.8. 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 4.8)
CVSS v4: 4.8
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-35662
Weakness: CWE-79
Affected product: Opensolution Quick.cms
Published: 2025-10-23
Last modified: 2026-06-17

Description

QuickCMS is vulnerable to multiple Stored XSS in page editor functionality (pages-form). Malicious attacker with admin privileges can inject arbitrary HTML and JS into website, which will be rendered/executed when visiting edited page. By default admin user is not able to add JavaScript into the website. 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-2025-9980?: QuickCMS is vulnerable to multiple Stored XSS in page editor functionality (pages-form). Malicious attacker with admin privileges can inject arbitrary HTML and JS into website, which will be rendered/executed when visiting edited page. By default admin user is not able to add JavaScript into the website. 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-2025-9980?: CVE-2025-9980 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-9980 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-9980?: CVE-2025-9980 affects Opensolution Quick.cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-9980?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-9980 have an EU (EUVD) identifier?: Yes. CVE-2025-9980 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35662.
When was CVE-2025-9980 published?: CVE-2025-9980 was published on 2025-10-23 and last updated on 2026-06-17.

References

Affected products (1)

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

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