Baitaphish
Security intelligence
SearchLatest briefing
CVE Explorer

CVE-2026-34576

Postiz is an AI social media scheduling tool. Prior to version 2.21.3, the POST /public/v1/upload-from-url endpoint accepts a user-supplied URL and fetches it server-side using axios.get() with no SSRF protections. The only validation is a file extension check (.png, .jpg, etc.) which is trivially bypassed by appending an image extension to any URL path. An authenticated API user can fetch internal network resources, cloud instance metadata, and other internal services, with the response data up
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:876248897ba4d0d82e4a3fc8b8a2df4b961661d5df30a22b6d3c72786beee1e4
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"postiz-app","vendor":"gitroomhq","versions":[{"status":"affected","version":"< 2.21.3"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:089894a0720a64f86b69f11adcf70ee4870e11cae55a7c649c8988f866d6a8c6 · sha256:a618a113cf3aeb79… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.3,"baseSeverity":"HIGH","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:089894a0720a64f86b69f11adcf70ee4870e11cae55a7c649c8988f866d6a8c6 · sha256:a618a113cf3aeb79… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:089894a0720a64f86b69f11adcf70ee4870e11cae55a7c649c8988f866d6a8c6 · sha256:a618a113cf3aeb79… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.3","tags":["x_refsource_MISC"],"url":"https://github.com/gitroomhq/postiz-app/releases/tag/v2.21.3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:089894a0720a64f86b69f11adcf70ee4870e11cae55a7c649c8988f866d6a8c6 · sha256:a618a113cf3aeb79… · /containers/cna/references/1
{"name":"https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-89vp-m2qw-7v34","tags":["x_refsource_CONFIRM"],"url":"https://github.com/gitroomhq/postiz-app/security/advisories/GHSA-89vp-m2qw-7v34"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:089894a0720a64f86b69f11adcf70ee4870e11cae55a7c649c8988f866d6a8c6 · sha256:a618a113cf3aeb79… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

← Back to CVE Explorer