CVE-2021-29487: October CMS auth bypass and account takeover

high Affects october/system. Feed 2026.10.29.4, updated 2026-10-29; published ; advisory modified .

October CMS auth bypass and account takeover

Package
october/system Composer
Affected versions
<1.0.472 or >=1.1.1 and <1.1.5
Fixed in
1.0.472, 1.1.5
Severity
high  CVSS 7.4
Exploitation
not on CISA KEV · EPSS 1% (59.4th percentile)
Published
2021-08-30
Source
osv.dev

References

CWE-287
NVD recordoctober/system advisories

Am I affected?

Find out in one command. phpwarden checks your composer.lock against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

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