CVE-2021-30057

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-04-05 · updated 2026-06-17
Weakness: CWE-74

Description

A stored HTML injection vulnerability exists in Knowage Suite version 7.1. An attacker can inject arbitrary HTML in "/restful-services/2.0/analyticalDrivers" via the 'LABEL' and 'NAME' parameters.

Affected products

KnowageLabs Knowage-Server: before 7.4 — fixed in 7.4

How to fix

Upgrade to a fixed version: KnowageLabs Knowage-Server 7.4. Check the vendor advisory for mitigations.

References

https://github.com/piuppi/Proof-of-Concepts/blob/main/Engineering/HTLM-Injection-KnowageSuite.md
https://github.com/piuppi/Proof-of-Concepts/blob/main/Engineering/HTLM-Injection-KnowageSuite.md

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