How severe is CVE-2021-44263?

CVE-2021-44263 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-2021-44263 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-44263?

CVE-2021-44263 affects Gurock Testrail. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-44263?

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

When was CVE-2021-44263 published?

CVE-2021-44263 was published on 2021-12-20 and last updated on 2026-06-17.

CVE-2021-44263

CVE-2021-44263 is a medium-severity vulnerability in Gurock Testrail 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)
CVSS v2: 3.5
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Gurock Testrail
Published: 2021-12-20
Last modified: 2026-06-17

Description

Gurock TestRail before 7.2.4 mishandles HTML escaping.

Frequently asked questions

What is CVE-2021-44263?: Gurock TestRail before 7.2.4 mishandles HTML escaping.
How severe is CVE-2021-44263?: CVE-2021-44263 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-2021-44263 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-44263?: CVE-2021-44263 affects Gurock Testrail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-44263?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-44263 published?: CVE-2021-44263 was published on 2021-12-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:gurock:testrail:*:*:*:*:*:*:*:*

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