How severe is CVE-2019-16187?

CVE-2019-16187 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-16187 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-16187?

CVE-2019-16187 affects Limesurvey. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-16187?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-16187 published?

CVE-2019-16187 was published on 2019-09-09 and last updated on 2026-06-17.

CVE-2019-16187

CVE-2019-16187 is a high-severity vulnerability in Limesurvey with a CVSS 3.x base score of 7.5. 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Limesurvey
Published: 2019-09-09
Last modified: 2026-06-17

Description

Limesurvey before 3.17.14 uses an anti-CSRF cookie without the HttpOnly flag, which allows attackers to access a cookie value via a client-side script.

Frequently asked questions

What is CVE-2019-16187?: Limesurvey before 3.17.14 uses an anti-CSRF cookie without the HttpOnly flag, which allows attackers to access a cookie value via a client-side script.
How severe is CVE-2019-16187?: CVE-2019-16187 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-16187 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-16187?: CVE-2019-16187 affects Limesurvey. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-16187?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-16187 published?: CVE-2019-16187 was published on 2019-09-09 and last updated on 2026-06-17.

References

Affected products (1)

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

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