SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-40875

Improper Access Control in Gurock TestRail versions < 7.2.0.3014 resulted in sensitive information exposure.

EXPLOITHIGH 7.5EPSS 47.5%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 47.5%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.

Description

Improper Access Control in Gurock TestRail versions < 7.2.0.3014 resulted in sensitive information exposure. A threat actor can access the /files.md5 file on the client side of a Gurock TestRail application, disclosing a full list of application files and the corresponding file paths. The corresponding file paths can be tested, and in some cases, result in the disclosure of hardcoded credentials, API keys, or other sensitive data.

CVSS 3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS
47.49% probability · 99th percentile
Public exploits
1 in Exploit-DB · first 23 September 2021
CISA KEV
Not listed
Weakness
CWE-425
Affected
gurock/testrail
Source
cve@mitre.org
EPSS trend
0%25%50%3 November 2026: 47.49%3 November 20263 November 2026

EPSS 47.5% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-50320source ↗Gurock Testrail 7.2.0.3014 - 'files.md5' Improper Access Controlmultiple · Sick Codeswebapps23 September 2021no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.