Skip to main content
MEDIUM

CVE-2021-26598

CVSS v3

5.3

MEDIUM

EPSS Score

10.5 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Get an alert for each new CVE published for impresscms/impresscms.

Set up CVE WatchFree account · no credit card

Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • impresscms/impresscmsPackagistall versions · fixed in 1.4.3

Full record on NVD

Description

ImpressCMS before 1.4.3 has Incorrect Access Control because include/findusers.php allows access by unauthenticated attackers (who are, by design, able to have a security token).

Technical details

Published
2022-03-28

Frequently asked questions

What is CVE-2021-26598?

ImpressCMS before 1.4.3 has Incorrect Access Control because include/findusers.php allows access by unauthenticated attackers (who are, by design, able to have a security token).

Is CVE-2021-26598 actively exploited?

Active exploitation of CVE-2021-26598 has not been confirmed. Its EPSS score was 10.5% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-26598?

CVE-2021-26598 has a CVSS v3 base score of 5.3 (MEDIUM severity).

Running impresscms/impresscms? Hear about its next vulnerability

CVE Watch matches each new CVE to the vendors and products you list (vendor and product, not the version) and puts it in your alerts with its KEV and EPSS status.

Already have an account? Open CVE WatchNo credit card required · No monthly cap on website lookups · 250 API requests/month