No exploitation reportedFix available

CVE-2021-43851

Q: Is CVE-2021-43851 actively exploited?

Active exploitation of CVE-2021-43851 has not been confirmed. Its EPSS score was 1.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2021-43851?

CVE-2021-43851 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2021-12-22
Fixed in1.19.33.5607
WeaknessCWE-89

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Anuko Time Tracker is an open source, web-based time tracking application written in PHP. SQL injection vulnerability exist in multiple files in Time Tracker version 1.19.33.5606 and prior due to not properly checking of the "group" and "status" parameters in POST requests. Group parameter is posted along when navigating between organizational subgroups (groups.php file). Status parameter is used in multiple files to change a status of an entity such as making a project, task, or user inactive. This issue has been patched in version 1.19.33.5607. An upgrade is highly recommended. If an upgrade is not practical, introduce ttValidStatus function as in the latest version and start using it user input check blocks wherever status field is used. For groups.php fix, introduce ttValidInteger function as in the latest version and use it in the access check block in the file.

Timeline

dates in UTC

2021-12-2200:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-43851?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-43851?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Anuko time tracker

Branch	Affected	Fixed in	Source
1.19	< 1.19.33.5607	1.19.33.5607	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Anuko time tracker to 1.19.33.5607

Advisories and patches

github.comPatch
github.comPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CNACVSS 3.18.1read 2026-10-23
NVDCVSS 3.18.8read 2026-10-23
NVDCVSS 2.06.5read 2026-10-23
CNAweakness (CWE)CWE-89read 2026-10-23
FIRST EPSSEPSS score1.2 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2021-12-22
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2021-43851?

Is CVE-2021-43851 actively exploited?

Active exploitation of CVE-2021-43851 has not been confirmed. Its EPSS score was 1.2% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-43851?

CVE-2021-43851 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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