Public vulnerability disclosure

CVE-2026-117687

CVE-2026-117687

publishedCWE-94

Movable Type provided by Six Apart Ltd. contains a code injection vulnerability in its Dynamic Publishing functionality. By sending a specially crafted request that is processed by the Dynamic Publishing, an attacker may be able to execute arbitrary PHP code on the affected product.

Technical severity7.3 highCVSS 3.0 · CNA: jpcert
Published2026-11-12Source updated 2026-11-12
Collected2026-11-121 attributed source

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Movable Type
Six Apart Ltd.
≥ 8.8.0; ≤ 8.8.6 (affected, semver)
Other versions: unaffected
CNA: jpcert
Movable Type Advanced
Six Apart Ltd.
≥ 8.8.0; ≤ 8.8.6 (affected, semver)
Other versions: unaffected
CNA: jpcert
Movable Type
Six Apart Ltd.
≥ 8.0.0; ≤ 8.0.13 (affected, semver)
Other versions: unaffected
CNA: jpcert
Movable Type Advanced
Six Apart Ltd.
≥ 8.0.0; ≤ 8.0.13 (affected, semver)
Other versions: unaffected
CNA: jpcert
Movable Type Premium
Six Apart Ltd.
≥ 2.00; ≤ 2.18 (affected, semver)
Other versions: unaffected
CNA: jpcert
Movable Type Premium Advanced Edition
Six Apart Ltd.
≥ 2.00; ≤ 2.18 (affected, semver)
Other versions: unaffected
CNA: jpcert

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
3.0 / 7.3
high
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LCNA: jpcert
4.0 / 6.9
medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:NCNA: jpcert

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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