HOMEVULNERABILITIESCVE-2026-33675
MEDIUM

CVE-2026-33675

CWE-918Published: March 24, 2026· Updated: Mar 27, 2026

5.4
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:9.7th

Official Description

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the migration helper functions `DownloadFile` and `DownloadFileWithHeaders` in `pkg/modules/migration/helpers.go` make arbitrary HTTP GET requests without any SSRF protection. When a user triggers a Todoist or Trello migration, file attachment URLs from the third-party API response are passed directly to these functions, allowing an attacker to force the Vikunja server to fetch internal network resources and return the response as a downloadable task attachment. Version 2.2.1 patches the issue.

NVD Source

Technical Analysis

CVE-2026-33675 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.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L

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

PATCHhttps://github.com/go-vikunja/vikunja/commit/93297742236e3d33af72c993e5da960db01d259e
ADVISORYhttps://github.com/go-vikunja/vikunja/security/advisories/GHSA-g66v-54v9-52pr
ADVISORYhttps://github.com/go-vikunja/vikunja/security/advisories/GHSA-g66v-54v9-52pr

All References (4)

→
https://github.com/go-vikunja/vikunja/commit/93297742236e3d33af72c993e5da960db01d259ePatch
→
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-g66v-54v9-52prExploit · Vendor Advisory
→
https://vikunja.io/changelog/vikunja-v2.2.2-was-releasedRelease Notes
→
https://github.com/go-vikunja/vikunja/security/advisories/GHSA-g66v-54v9-52prExploit · Vendor Advisory

Quick Facts

CVE IDCVE-2026-33675
CVSS Score5.4 / 10
SeverityMEDIUM
WeaknessCWE-918
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedMar 24, 2026

Related CVEs (CWE-918)

CVE-2026-26150
10.0
CVE-2026-26138
10.0
CVE-2026-32871
10.0
CVE-2026-35431
10.0
CVE-2026-32169
10.0
CVE-2026-13773
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-33675 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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