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CVE-2026-13603

The payment integration pretix-oppwa provides support for the payment providers VR Payment, Hobex, and potentially others based on Oppwa's technology. The integration of Oppwa, following their official documentation, includes a step where the user is redirected from the payment provider back to our system with a query parameter like ?resourcePath=/v1/checkouts/{checkoutId}/payment in the URL. Our system is then supposed to fetch the status of the transaction from the URL given by baseUrl +
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:017352a3d6042b25fc92a666b07b2dd0a9fa4567207b7837e983a08d4350f9e2
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"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:acd4d5df43404fdb0dd0d5eb973b98a4dcd4940af2918f9c0a84ec4ed2604900 · sha256:c630dc8cfc3ea168… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-20","description":"CWE-20 Improper input validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:acd4d5df43404fdb0dd0d5eb973b98a4dcd4940af2918f9c0a84ec4ed2604900 · sha256:c630dc8cfc3ea168… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"collectionURL":"https://pypi.python.org","defaultStatus":"unaffected","packageName":"pretix-oppwa","product":"pretix-oppwa","repo":"https://github.com/pretix/pretix-oppwa","vendor":"pretix","versions":[{"lessThan":"1.4.4","status":"affected","version":"0","versionType":"python"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:acd4d5df43404fdb0dd0d5eb973b98a4dcd4940af2918f9c0a84ec4ed2604900 · sha256:c630dc8cfc3ea168… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9,"baseSeverity":"CRITICAL","exploitMaturity":"UNREPORTED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:U","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:acd4d5df43404fdb0dd0d5eb973b98a4dcd4940af2918f9c0a84ec4ed2604900 · sha256:c630dc8cfc3ea168… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"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:acd4d5df43404fdb0dd0d5eb973b98a4dcd4940af2918f9c0a84ec4ed2604900 · sha256:c630dc8cfc3ea168… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-20","description":"CWE-20 Improper input validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:acd4d5df43404fdb0dd0d5eb973b98a4dcd4940af2918f9c0a84ec4ed2604900 · sha256:c630dc8cfc3ea168… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"tags":["vendor-advisory"],"url":"https://pretix.eu/about/en/blog/20260701-release-2026-5-3/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:acd4d5df43404fdb0dd0d5eb973b98a4dcd4940af2918f9c0a84ec4ed2604900 · sha256:c630dc8cfc3ea168… · /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.

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