What is CVE-2020-15400?

CVE-2020-15400 is a medium-severity vulnerability in Cakefoundation Cakephp, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2020-06-30.

How severe is CVE-2020-15400?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Is CVE-2020-15400 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Cakefoundation Cakephp

CVE-2020-15400

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

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-06-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (37.5th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 37.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Cakefoundation Cakephp

Weakness classification (CWE)

Public proof-of-concept exploits

pieceofcake2/cakephp

References

bakery.cakephp.org/2020/04/18/cakephp_406_released.html (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2020-15400?: CVE-2020-15400 is a medium-severity vulnerability in Cakefoundation Cakephp, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2020-06-30.
How severe is CVE-2020-15400?: Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2020-15400 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.