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CVE-2026-40187

In egroupware version 26.0 and earlier, an authenticated administrator can achieve OS-level Remote Code Execution (RCE) by uploading a malicious eTemplate XML file (`.xet`) to the VFS `/etemplates` mount. The `Widget::expand_name()` method passes template widget attribute values directly into a PHP `eval()` call with only double-quote escaping applied - **backtick characters are not escaped**. In PHP, backticks inside a double-quoted `eval()` string execute shell commands. This allows an admin-l
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a5b2100cc33929028aff15d7a2fe249a1b8b9d4a60b7429bed7422578d6d3440
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-78","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:51d6b71ecfe5f4772e7db17bab4a4b241054e8b54218d7dae5c4d127189d026d · sha256:a7478e05c60cf792… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-95","description":"CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:51d6b71ecfe5f4772e7db17bab4a4b241054e8b54218d7dae5c4d127189d026d · sha256:a7478e05c60cf792… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"egroupware","vendor":"EGroupware","versions":[{"status":"affected","version":"<= 26.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:51d6b71ecfe5f4772e7db17bab4a4b241054e8b54218d7dae5c4d127189d026d · sha256:a7478e05c60cf792… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.6,"baseSeverity":"HIGH","privilegesRequired":"HIGH","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:51d6b71ecfe5f4772e7db17bab4a4b241054e8b54218d7dae5c4d127189d026d · sha256:a7478e05c60cf792… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-78","description":"CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:51d6b71ecfe5f4772e7db17bab4a4b241054e8b54218d7dae5c4d127189d026d · sha256:a7478e05c60cf792… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-95","description":"CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:51d6b71ecfe5f4772e7db17bab4a4b241054e8b54218d7dae5c4d127189d026d · sha256:a7478e05c60cf792… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions
{"tags":["exploit"],"url":"https://github.com/EGroupware/egroupware/security/advisories/GHSA-8737-2x9g-xjj7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51d6b71ecfe5f4772e7db17bab4a4b241054e8b54218d7dae5c4d127189d026d · sha256:a7478e05c60cf792… · /containers/adp/0/references/0
{"name":"https://github.com/EGroupware/egroupware/security/advisories/GHSA-8737-2x9g-xjj7","tags":["x_refsource_CONFIRM"],"url":"https://github.com/EGroupware/egroupware/security/advisories/GHSA-8737-2x9g-xjj7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:51d6b71ecfe5f4772e7db17bab4a4b241054e8b54218d7dae5c4d127189d026d · sha256:a7478e05c60cf792… · /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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