How severe is CVE-2020-11456?

CVE-2020-11456 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-2020-11456 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 71% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-11456?

CVE-2020-11456 primarily affects Limesurvey. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-11456?

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

When was CVE-2020-11456 published?

CVE-2020-11456 was published on 2020-04-01 and last updated on 2026-06-17.

CVE-2020-11456

CVE-2020-11456 is a medium-severity vulnerability in Limesurvey with a CVSS 3.x base score of 5.4. Its EPSS exploit-prediction score of 71% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 71% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Limesurvey
Published: 2020-04-01
Last modified: 2026-06-17

Description

LimeSurvey before 4.1.12+200324 has stored XSS in application/views/admin/surveysgroups/surveySettings.php and application/models/SurveysGroups.php (aka survey groups).

Frequently asked questions

What is CVE-2020-11456?: LimeSurvey before 4.1.12+200324 has stored XSS in application/views/admin/surveysgroups/surveySettings.php and application/models/SurveysGroups.php (aka survey groups).
How severe is CVE-2020-11456?: CVE-2020-11456 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-2020-11456 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 71% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-11456?: CVE-2020-11456 primarily affects Limesurvey. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-11456?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-11456 published?: CVE-2020-11456 was published on 2020-04-01 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:limesurvey:limesurvey:*:*:*:*:*:*:*:*
cpe:2.3:a:limesurvey:limesurvey:4.1.12:-:*:*:*:*:*:*
cpe:2.3:a:limesurvey:limesurvey:4.1.12:200324:*:*:*:*:*:*

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