What is CVE-2020-22535?

CVE-2020-22535 is a medium-severity vulnerability in Pbootcms, classified under Exposure of Resource to Wrong Sphere. CVSS score: 6.5/10. Published 2021-07-09.

How severe is CVE-2020-22535?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Pbootcms

CVE-2020-22535

Incorrect Access Control vulnerability in PbootCMS 2.0.6 via the list parameter in the update function in upgradecontroller.php.

Published 2021-07-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 54.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Pbootcms — versions 2.0.6

Weakness classification (CWE)

CWE-668 — Exposure of Resource to Wrong Sphere

References

github.com/Pbootcms/Pbootcms/issues/5 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2020-22535?: CVE-2020-22535 is a medium-severity vulnerability in Pbootcms, classified under Exposure of Resource to Wrong Sphere. CVSS score: 6.5/10. Published 2021-07-09.
How severe is CVE-2020-22535?: Medium severity. CVSS v3 base score is 6.5 out of 10.