CVE-2021-30056 json
Knowage Suite before 7.4 is vulnerable to reflected cross-site scripting (XSS).
published 2021-04-05 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-17000
- cvss
- 5.4
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
Knowage Suite before 7.4 is vulnerable to reflected cross-site scripting (XSS). An attacker can inject arbitrary web script in /restful-services/publish via the 'EXEC_FROM' parameter that can lead to data leakage.
Patch / fix
- eng knowage 7.4
Exploit prediction
0.62% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/piuppi/Proof-of-Concepts/blob/main/Engineering/XSS-KnowageSuite.md referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 3.5 | AV:N/AC:M/Au:S/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
github.com
/piuppi/Proof-of-Concepts/blob/main/Engineering/XSS-KnowageSuite.md
exploit, third-party-advisory
Sources
- CVE List CVE-2021-30056
- NVD CVE-2021-30056
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