CVE-2020-15400: CakePHP before 4.0.6 mishandles CSRF token generation

Q: How do I fix CVE-2020-15400?

cakephp: upgrade to 4.0.6. Exact commands for each OS are on this page.

Q: Is CVE-2020-15400 being exploited?

CVE-2020-15400 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-2020-15400 affect?

CVE-2020-15400 affects cakephp. Severity is medium (CVSS 4.3). CakePHP before 4.0.6 mishandles CSRF token generation. This might be remotely exploitable in conjunction with XSS.

Q: How urgent is CVE-2020-15400?

Priority 25/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2020-15400 is a medium-severity flaw (CVSS 4.3) affecting cakephp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CakePHP before 4.0.6 mishandles CSRF token generation. This might be remotely exploitable in conjunction with XSS.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 61%)
CISA exploited list	No
Weakness	CWE-79, CWE-352
Published	2020-06-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: cakefoundation

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-06-30 12:15 UTCPublished CVE record published
2026-06-17 02:56 UTCUpdated Record last modified

cakefoundation cakephp UPGRADE

Affected: < 4.0.6

Fixed in: 4.0.6

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 4.0.6 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cakephp

Note

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

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-2020-15400?

cakephp: upgrade to 4.0.6. Exact commands for each OS are on this page.

Is CVE-2020-15400 being exploited?

CVE-2020-15400 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-2020-15400 affect?

CVE-2020-15400 affects cakephp. Severity is medium (CVSS 4.3). CakePHP before 4.0.6 mishandles CSRF token generation. This might be remotely exploitable in conjunction with XSS.

How urgent is CVE-2020-15400?

Priority 25/100. No elevated risk signals yet.

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References

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