How severe is CVE-2026-27147?

CVE-2026-27147 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-27147 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-27147?

CVE-2026-27147 affects Getsimple-ce Getsimple Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-27147?

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

Does CVE-2026-27147 have an EU (EUVD) identifier?

Yes. CVE-2026-27147 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7751.

When was CVE-2026-27147 published?

CVE-2026-27147 was published on 2026-02-21 and last updated on 2026-06-17.

CVE-2026-27147

CVE-2026-27147 is a medium-severity vulnerability in Getsimple-ce Getsimple Cms with a CVSS 3.x base score of 5.4. 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 5.4)
CVSS v4: 6.9
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7751
Weakness: CWE-79
Affected product: Getsimple-ce Getsimple Cms
Published: 2026-02-21
Last modified: 2026-06-17

Description

GetSimple CMS is a content management system. All versions of GetSimple CMS are vulnerable to XSS through SVG file uploads. Authenticated users can upload SVG files via the administrative upload functionality, but they are not properly sanitized or restricted, allowing an attacker to embed malicious JavaScript. When the uploaded SVG file is accessed, the script executes in the browser. This issue does not have a fix at the time of publication.

Frequently asked questions

What is CVE-2026-27147?: GetSimple CMS is a content management system. All versions of GetSimple CMS are vulnerable to XSS through SVG file uploads. Authenticated users can upload SVG files via the administrative upload functionality, but they are not properly sanitized or restricted, allowing an attacker to embed malicious JavaScript. When the uploaded SVG file is accessed, the script executes in the browser. This issue does not have a fix at the time of publication.
How severe is CVE-2026-27147?: CVE-2026-27147 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-27147 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27147?: CVE-2026-27147 affects Getsimple-ce Getsimple Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27147?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-27147 have an EU (EUVD) identifier?: Yes. CVE-2026-27147 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7751.
When was CVE-2026-27147 published?: CVE-2026-27147 was published on 2026-02-21 and last updated on 2026-06-17.

References

https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-5gmq-hrcx-6w45

Affected products (1)

cpe:2.3:a:getsimple-ce:getsimple_cms:*:*:*:*:community:*:*:*

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