HOMEVULNERABILITIESCVE-2020-15255
HIGHPOC

CVE-2020-15255

CWE-74Published: October 16, 2020· Updated: Jun 17, 2026

7.3
CVSS v3.1

Official Description

In Anuko Time Tracker before verion 1.19.23.5325, due to not properly filtered user input a CSV export of a report could contain cells that are treated as formulas by spreadsheet software (for example, when a cell value starts with an equal sign). This is fixed in version 1.19.23.5325.

NVD Source

Technical Analysis

CVE-2020-15255 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.3.

A proof-of-concept (PoC) exploit exists for CVE-2020-15255. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

anuko1 product(s)
time tracker
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/anuko/timetracker/commit/d9472904361495f318c9d0294ffd28acaaeae42f
PATCHhttps://github.com/anuko/timetracker/commit/d9472904361495f318c9d0294ffd28acaaeae42f
ADVISORYhttp://packetstormsecurity.com/files/159996/Anuko-Time-Tracker-1.19.23.5325-CSV-Injection.html
ADVISORYhttps://github.com/anuko/timetracker/security/advisories/GHSA-prjf-9mgh-8fpv
ADVISORYhttps://www.exploit-db.com/exploits/49027
ADVISORYhttp://packetstormsecurity.com/files/159996/Anuko-Time-Tracker-1.19.23.5325-CSV-Injection.html
ADVISORYhttps://github.com/anuko/timetracker/security/advisories/GHSA-prjf-9mgh-8fpv
ADVISORYhttps://www.exploit-db.com/exploits/49027

All References (8)

→
http://packetstormsecurity.com/files/159996/Anuko-Time-Tracker-1.19.23.5325-CSV-Injection.htmlExploit · Third Party Advisory · VDB Entry
→
https://github.com/anuko/timetracker/commit/d9472904361495f318c9d0294ffd28acaaeae42fPatch · Third Party Advisory
→
https://github.com/anuko/timetracker/security/advisories/GHSA-prjf-9mgh-8fpvThird Party Advisory
→
https://www.exploit-db.com/exploits/49027Exploit · Third Party Advisory · VDB Entry
→
http://packetstormsecurity.com/files/159996/Anuko-Time-Tracker-1.19.23.5325-CSV-Injection.htmlExploit · Third Party Advisory · VDB Entry
→
https://github.com/anuko/timetracker/commit/d9472904361495f318c9d0294ffd28acaaeae42fPatch · Third Party Advisory
→
https://github.com/anuko/timetracker/security/advisories/GHSA-prjf-9mgh-8fpvThird Party Advisory
→
https://www.exploit-db.com/exploits/49027Exploit · Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2020-15255
CVSS Score7.3 / 10
SeverityHIGH
WeaknessCWE-74
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedOct 16, 2020

Related CVEs (CWE-74)

CVE-2024-42472
10.0
CVE-2025-20265
10.0
CVE-2023-30547
10.0
CVE-2023-32314
10.0
CVE-2014-8423
10.0
CVE-2026-44182
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-15255 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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