CVE-2026-25125: October is a Content Management System (CMS) and web platform

Routine

MEDIUM 4.9UPGRADE

CVE-2026-25125 is a medium-severity flaw (CVSS 4.9) affecting october. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

October is a Content Management System (CMS) and web platform. Versions prior to 3.7.14 and 4.1.10 contain a server-side information disclosure vulnerability in the INI settings parser. Because PHP's parse_ini_string() function supports ${} syntax for environment variable interpolation, attackers with Editor access could inject patterns such as ${APP_KEY} or ${DB_PASSWORD} into CMS page settings fields, causing sensitive environment variables to

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.9 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-94, CWE-200
Published	2026-04-14
Last modified	2026-07-25

Publisher (CNA): GitHub, Inc. · Vendor: octobercms

Last updated 2026-07-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-14 21:16 UTCPublished CVE record published
2026-07-25 11:10 UTCUpdated Record last modified

octobercms october UPGRADE

Affected: < 3.7.14 · >= 4.0.0 and < 4.1.10

Fixed in: 3.7.14, 4.1.10

Safe to downgrade to: a release before 4.0.0

1. Check installed version

apt-cache policy october || rpm -q october || october --version

2. UPGRADE to 3.7.14 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade october

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade october

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 4.0.0 (Debian / Ubuntu)

apt-cache madison october sudo apt install october=<VERSION_BEFORE_4.0.0> sudo apt-mark hold october

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list october sudo dnf downgrade october-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add october

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-25125?

october: upgrade to 3.7.14, 4.1.10. Exact commands for each OS are on this page.

Is CVE-2026-25125 being exploited?

CVE-2026-25125 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-25125 affect?

CVE-2026-25125 affects october. Severity is medium (CVSS 4.9). October is a Content Management System (CMS) and web platform. Versions prior to 3.7.14 and 4.1.10 contain a server-side information disclosure vulnerability in the INI settings parser. Because PHP's parse_ini_string() function supports ${}

How urgent is CVE-2026-25125?

Priority 24/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

Related CVEs

CVE-2026-22692 MEDIUM 4.9 UPGRADE October is a Content Management System (CMS) and web platform
CVE-2026-24906 MEDIUM 5.4 UPGRADE October is a Content Management System (CMS) and web platform
CVE-2026-24907 MEDIUM 5.4 UPGRADE October is a Content Management System (CMS) and web platform
CVE-2026-25133 MEDIUM 4.8 UPGRADE October is a Content Management System (CMS) and web platform

References

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