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CVE-2026-54390

JTL Shop versions 5.2.0 through 5.7.1 contains a server-side template injection vulnerability that allows unauthenticated attackers to inject malicious template syntax due to unsanitized user-supplied input passed to the Smarty template engine. Attackers can exploit this flaw to read sensitive server-side values such as database credentials and encryption keys, and on versions 5.4.0 through 5.7.1, leverage registered Smarty modifiers including unserialize and file_get_contents to write a webshel
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4ffca7d5e5000a72ac6ed0b9e1c0eadf8cfa18cc842ad03648a5acd935201946
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","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:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpac…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7a5e7beb090a91085c42c95803d4c3b568f77303a530ea02f2f8ace3c261c8d7 · sha256:7d85851362935d32… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7a5e7beb090a91085c42c95803d4c3b568f77303a530ea02f2f8ace3c261c8d7 · sha256:7d85851362935d32… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

1 source assertion
{"defaultStatus":"affected","product":"JTL Shop","vendor":"JTL Software","versions":[{"lessThanOrEqual":"5.1.8","status":"unaffected","version":"5.0.0","versionType":"semver"},{"lessThan":"5.4.0","status":"affected","version":"5.2.0","versionType":"semver"},{"lessThanOrEqual":"5.7.1","status":"affected","version":"5.4.0","versionType":"semver"},{"status":"unaffected","version":"5.5.4","versionType":"semver"},{"status":"unaffected","version":"5.6.2","versionType":"semver"},{"status":"unaffected","version":"5.7.2","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:7a5e7beb090a91085c42c95803d4c3b568f77303a530ea02f2f8ace3c261c8d7 · sha256:7d85851362935d32… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","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:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpac…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7a5e7beb090a91085c42c95803d4c3b568f77303a530ea02f2f8ace3c261c8d7 · sha256:7d85851362935d32… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:7a5e7beb090a91085c42c95803d4c3b568f77303a530ea02f2f8ace3c261c8d7 · sha256:7d85851362935d32… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-1336","description":"Improper Neutralization of Special Elements Used in a Template Engine","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:7a5e7beb090a91085c42c95803d4c3b568f77303a530ea02f2f8ace3c261c8d7 · sha256:7d85851362935d32… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["release-notes","patch"],"url":"https://forum.jtl-software.de/threads/jtl-shop-5-7-aktuell-5-7-2.246278/"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7a5e7beb090a91085c42c95803d4c3b568f77303a530ea02f2f8ace3c261c8d7 · sha256:7d85851362935d32… · /containers/cna/references/1
{"tags":["technical-description"],"url":"https://sansec.io/research/jtl-shop-ssti-rce"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7a5e7beb090a91085c42c95803d4c3b568f77303a530ea02f2f8ace3c261c8d7 · sha256:7d85851362935d32… · /containers/cna/references/0
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/jtl-shop-server-side-template-injection-via-smarty-renderer"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:7a5e7beb090a91085c42c95803d4c3b568f77303a530ea02f2f8ace3c261c8d7 · sha256:7d85851362935d32… · /containers/cna/references/2

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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