HOMEVULNERABILITIESCVE-2026-33473
MEDIUM

CVE-2026-33473

CWE-287Published: March 24, 2026· Updated: Mar 27, 2026

5.7
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:7.3th

Official Description

Vikunja is an open-source self-hosted task management platform. Starting in version 0.13 and prior to version 2.2.1, any user that has enabled 2FA can have their TOTP reused during the standard 30 second validity window. Version 2.2.1 patches the issue.

NVD Source

Technical Analysis

CVE-2026-33473 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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), with a CVSS base score of 5.7.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

vikunja1 product
vikunja
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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

ADVISORYhttps://github.com/go-vikunja/vikunja/security/advisories/GHSA-p747-qc5p-773r

All References (3)

→
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-p747-qc5p-773rExploit · Vendor Advisory
→
https://vikunja.io/changelog/vikunja-v2.2.0-was-releasedRelease Notes
→
https://vikunja.io/changelog/vikunja-v2.2.2-was-releasedRelease Notes

Quick Facts

CVE IDCVE-2026-33473
CVSS Score5.7 / 10
SeverityMEDIUM
WeaknessCWE-287
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedMar 24, 2026

Related CVEs (CWE-287)

CVE-2026-23600
10.0
CVE-2026-49197
10.0
CVE-2026-30836
10.0
CVE-2026-42822
10.0
CVE-2026-46389
10.0
CVE-2026-45480
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-33473 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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