How severe is CVE-2025-41376?

CVE-2025-41376 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-41376 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-41376?

CVE-2025-41376 affects Limesurvey. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-41376?

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

Does CVE-2025-41376 have an EU (EUVD) identifier?

Yes. CVE-2025-41376 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23353.

When was CVE-2025-41376 published?

CVE-2025-41376 was published on 2025-08-01 and last updated on 2026-06-17.

CVE-2025-41376

CVE-2025-41376 is a medium-severity vulnerability in Limesurvey with a CVSS 3.x base score of 5.3. 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-93.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 5.1
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-23353
Weakness: CWE-93
Affected product: Limesurvey
Published: 2025-08-01
Last modified: 2026-06-17

Description

CRLF Injection vulnerability in Limesurvey v2.65.1+170522. This vulnerability could allow a remote attacker to inject arbitrary HTTP headers and perform HTTP response splitting attacks via '/index.php/survey/index/sid/<SID>/token/fwyfw%0d%0aCookie:%20POC'.

Frequently asked questions

What is CVE-2025-41376?: CRLF Injection vulnerability in Limesurvey v2.65.1+170522. This vulnerability could allow a remote attacker to inject arbitrary HTTP headers and perform HTTP response splitting attacks via '/index.php/survey/index/sid/<SID>/token/fwyfw%0d%0aCookie:%20POC'.
How severe is CVE-2025-41376?: CVE-2025-41376 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-41376 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-41376?: CVE-2025-41376 affects Limesurvey. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-41376?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-41376 have an EU (EUVD) identifier?: Yes. CVE-2025-41376 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-23353.
When was CVE-2025-41376 published?: CVE-2025-41376 was published on 2025-08-01 and last updated on 2026-06-17.

References

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

Affected products (1)

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

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