CVE-2025-34086: Bolt CMS versions 3.7.0 and earlier contain a chain of vulnerabilities that together allow an authenticated us

Q: How do I fix CVE-2025-34086?

bolt: upgrade to newer than 3.7.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-34086 being exploited?

CVE-2025-34086 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-34086 affect?

CVE-2025-34086 affects bolt. Severity is high (CVSS 8.8). Bolt CMS versions 3.7.0 and earlier contain a chain of vulnerabilities that together allow an authenticated user to achieve remote code execution. A user with valid credentials can inject arbitrary PHP code into the displayname field of the

Q: How urgent is CVE-2025-34086?

Priority 59/100. High severity; EPSS top 9%: very likely to be exploited; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2025-34086 is a high-severity flaw (CVSS 8.8) affecting bolt. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Bolt CMS versions 3.7.0 and earlier contain a chain of vulnerabilities that together allow an authenticated user to achieve remote code execution. A user with valid credentials can inject arbitrary PHP code into the displayname field of the user profile, which is rendered unsanitized in backend templates. The attacker can then list and rename cached session files via the /async/browse/cache/.sessions and /async/folder/rename endpoints. By renamin

Why this priority

High severity
EPSS top 9%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	4.2% (top 9%)
CISA exploited list	No
Weakness	CWE-94, CWE-434
Published	2025-07-03
Last modified	2026-10-08

Publisher (CNA): VulnCheck · Vendor: boltcms

Last updated 2026-10-08 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-03 20:15 UTCPublished CVE record published
2026-10-08 16:16 UTCUpdated Record last modified

boltcms bolt UPGRADE

Affected: <= 3.7.0

Fixed in: newer than 3.7.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 3.7.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bolt

Note

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

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Metasploit: Bolt CMS 3.7.0 - Authenticated Remote Code Execution

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-2025-34086?

bolt: upgrade to newer than 3.7.0. Exact commands for each OS are on this page.

Is CVE-2025-34086 being exploited?

CVE-2025-34086 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-2025-34086 affect?

CVE-2025-34086 affects bolt. Severity is high (CVSS 8.8). Bolt CMS versions 3.7.0 and earlier contain a chain of vulnerabilities that together allow an authenticated user to achieve remote code execution. A user with valid credentials can inject arbitrary PHP code into the displayname field of the

How urgent is CVE-2025-34086?

Priority 59/100. High severity; EPSS top 9%: very likely to be exploited; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2024-7300 LOW 3.5 DOWNGRADE A vulnerability classified as problematic has been found in Bolt CMS 3.7.1
CVE-2024-7299 LOW 3.5 DOWNGRADE ** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was found in Bolt CMS 3.7.1

References

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