How severe is CVE-2025-41076?

CVE-2025-41076 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-41076 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-41076?

CVE-2025-41076 affects Limesurvey. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-41076?

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

Does CVE-2025-41076 have an EU (EUVD) identifier?

Yes. CVE-2025-41076 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198280.

When was CVE-2025-41076 published?

CVE-2025-41076 was published on 2025-11-20 and last updated on 2026-06-17.

CVE-2025-41076

CVE-2025-41076 is a medium-severity vulnerability in Limesurvey with a CVSS 3.x base score of 6.5. 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-209.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 6.9
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-198280
Weakness: CWE-209
Affected product: Limesurvey
Published: 2025-11-20
Last modified: 2026-06-17

Description

In version 6.13.0 of LimeSurvey, any external user can cause a 500 error in the survey system by sending a malformed session cookie. Instead of displaying a generic error message, the system exposes internal backend information, including the use of the Yii framework, the MySQL/MariaDB database engine, the table name 'lime_sessions', primary keys, and fragments of the content that caused the conflict. This information can simplify the collection of data about the internal architecture of the application by an attacker.

Frequently asked questions

What is CVE-2025-41076?: In version 6.13.0 of LimeSurvey, any external user can cause a 500 error in the survey system by sending a malformed session cookie. Instead of displaying a generic error message, the system exposes internal backend information, including the use of the Yii framework, the MySQL/MariaDB database engine, the table name 'lime_sessions', primary keys, and fragments of the content that caused the conflict. This information can simplify the collection of data about the internal architecture of the application by an attacker.
How severe is CVE-2025-41076?: CVE-2025-41076 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-41076 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-41076?: CVE-2025-41076 affects Limesurvey. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-41076?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-41076 have an EU (EUVD) identifier?: Yes. CVE-2025-41076 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198280.
When was CVE-2025-41076 published?: CVE-2025-41076 was published on 2025-11-20 and last updated on 2026-06-17.

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-limesurvey-0

Affected products (1)

cpe:2.3:a:limesurvey:limesurvey:6.13.0:*:*:*:*:*:*:*

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