CVE Explorer

CVE-2026-34906

Server-Side Template Injection (SSTI) in Wirtualna Uczelnia allows an unauthenticated attacker to perform Remote Code Execution (RCE). In the endpoint redirectToUrl and parameter redirectUrlParameter, insufficient input validation permits injection of arbitrary template expressions that are executed on the server. Successful exploitation can allow an attacker to run remote commands, including establishing a reverse shell. This issue affects Wirtualna Uczelnia versions up to wu#2016.437.295#0#20

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f0556d2887ea5f62a0f3d62d3493c631717c3ebab54dc157eef80a240b9eae0a

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"defaultStatus":"unaffected","product":"Wirtualna Uczelnia","vendor":"Simple SA","versions":[{"lessThanOrEqual":"wu#2016.437.295#0#20260327_105545","status":"affected","version":"0","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:259d4f8a39f2f92adaecefbf9c8f43d07f87f5b483c80cbfdc2299417942decb · sha256:fa9c866b8a85e6cd… · /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":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"LOW","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HI…

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:259d4f8a39f2f92adaecefbf9c8f43d07f87f5b483c80cbfdc2299417942decb · sha256:fa9c866b8a85e6cd… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-1336","description":"CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:259d4f8a39f2f92adaecefbf9c8f43d07f87f5b483c80cbfdc2299417942decb · sha256:fa9c866b8a85e6cd… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"tags":["third-party-advisory"],"url":"https://cert.pl/posts/2026/06/CVE-2026-34906"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:259d4f8a39f2f92adaecefbf9c8f43d07f87f5b483c80cbfdc2299417942decb · sha256:fa9c866b8a85e6cd… · /containers/cna/references/0

{"tags":["product"],"url":"https://simple.com.pl/branze/edukacyjna/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:259d4f8a39f2f92adaecefbf9c8f43d07f87f5b483c80cbfdc2299417942decb · sha256:fa9c866b8a85e6cd… · /containers/cna/references/1

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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