Incorrect Access Control in ImpressCMS

MEDIUM 5.3CVE-2021-26598 · GHSA-48p3-xfvw-g59c · Published 28/03/2022 · updated 17/06/2026

In short

CVE-2021-26598 is a MEDIUM (CVSS 5.3) vulnerability affecting impresscms/impresscms, impresscms (impresscms).
Chance of exploitation in the next 30 days (EPSS): 10.5%, higher than 95.8% of all vulnerabilities.
Fix: update to 1.4.3 or later.

Package	Affected versions	Patched versions
impresscms/impresscms Packagist	`< 1.4.3`	`1.4.3`
impresscms impresscms	`< 1.4.3`	`1.4.3`

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).

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).

References

nvd.nist.gov/vuln/detail/CVE-2021-26598 · ADVISORY
ImpressCMS/impresscms#967 · WEB
hackerone.com/reports/1081137 · WEB
ImpressCMS/impresscms · PACKAGE
ImpressCMS/impresscms release v1.4.3 · WEB
packetstormsecurity.com/files/166403/ImpressCMS-1.4.2-Incorrect-Access-Control.html · WEB
karmainsecurity.com/KIS-2022-03 · WEB
seclists.org/fulldisclosure/2022/Mar/45 · WEB

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Package

Affected versions

Patched versions

impresscms/impresscms

Packagist

< 1.4.3

1.4.3

impresscms

< 1.4.3

1.4.3

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).

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).

More vulnerabilities in impresscms/impresscms

See all →