CVE-2026-49400 October CMS: PHP Object Injection via Backend Widget Session Storage
| Reporter | Title | Published | Views | Family All 11 |
|---|---|---|---|---|
 | The vulnerability of the unserialize() function in the SessionMaker CMS system, October CMS, allows a hacker to execute arbitrary code. | 18 Sep 202600:00 | – | bdu_fstec |
 | CVE-2026-49400 | 15 Sep 202600:31 | – | circl |
 | CVE-2026-49400 | 14 Sep 202617:15 | – | cve |
 | EUVD-2026-77682 | 14 Sep 202617:15 | – | euvd |
 | October CMS: PHP Object Injection via Backend Widget Session Storage | 14 Sep 202617:08 | – | github |
 | CVE-2026-49400 | 14 Sep 202618:17 | – | nvd |
 | GHSA-2FF2-MX52-Q8WP October CMS: PHP Object Injection via Backend Widget Session Storage | 14 Sep 202617:08 | – | osv |
 | PT-2026-91278 | 13 Sep 202600:00 | – | ptsecurity |
 | CVE-2026-49400: Deserialization of Untrusted Data | 14 Sep 202600:00 | – | rapid7 |
 | Deserialization of Untrusted Data | 14 Sep 202617:08 | – | snyk |
10
[
{
"vendor": "octobercms",
"product": "october",
"versions": [
{
"version": "< 3.7.17",
"status": "affected"
},
{
"version": ">= 4.0.0, < 4.2.23",
"status": "affected"
}
]
}
]Data
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14 Sep 2026 17:15Current
CVSS 3.13.3
EPSS0.00237
SSVC