How severe is CVE-2025-56761?

CVE-2025-56761 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-2025-56761 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-56761?

CVE-2025-56761 affects Usememos Memos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-56761?

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

Does CVE-2025-56761 have an EU (EUVD) identifier?

Yes. CVE-2025-56761 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26608.

When was CVE-2025-56761 published?

CVE-2025-56761 was published on 2025-09-03 and last updated on 2026-06-17.

CVE-2025-56761

CVE-2025-56761 is a medium-severity vulnerability in Usememos Memos 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)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-26608
Weakness: CWE-79
Affected product: Usememos Memos
Published: 2025-09-03
Last modified: 2026-06-17

Description

Memos 0.22 is vulnerable to Stored Cross site scripting (XSS) vulnerabilities by the upload attachment and user avatar features. Memos does not verify the content type of the uploaded data and serve it back as is. An authenticated attacker can use this to elevate their privileges when the stored XSS is viewed by an admin.

Frequently asked questions

What is CVE-2025-56761?: Memos 0.22 is vulnerable to Stored Cross site scripting (XSS) vulnerabilities by the upload attachment and user avatar features. Memos does not verify the content type of the uploaded data and serve it back as is. An authenticated attacker can use this to elevate their privileges when the stored XSS is viewed by an admin.
How severe is CVE-2025-56761?: CVE-2025-56761 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-2025-56761 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-56761?: CVE-2025-56761 affects Usememos Memos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-56761?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-56761 have an EU (EUVD) identifier?: Yes. CVE-2025-56761 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26608.
When was CVE-2025-56761 published?: CVE-2025-56761 was published on 2025-09-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:usememos:memos:0.22.0:*:*:*:*:*:*:*

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CVE-2022-4866 — Critical (CVSS 9.0): Cross-site Scripting (XSS) - Stored in GitHub repository usememos/memos prior to 0.9.1.
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