CVE-2020-16270 json
OLIMPOKS under 3.3.39 allows Auth/Admin ErrorMessage XSS.
published 2020-10-16 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-8231
- cvss
- 6.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 13.1%
- EPSS 13.1% chance of exploitation in 30 days, percentile 96%
- public exploits
- 0
- none known
Summary
OLIMPOKS under 3.3.39 allows Auth/Admin ErrorMessage XSS. Remote Attacker can use discovered vulnerability to inject malicious JavaScript payload to victim’s browsers in context of vulnerable applications. Executed code can be used to steal administrator’s cookies, influence HTML content of targeted application and perform phishing-related attacks. Vulnerable application used in more than 3000 organizations in different sectors from retail to industries.
Patch / fix
- olimpoks olimpok 3.3.39
Exploit prediction
13.11% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
olimpoks.ru
/oks/forum/olimpoks5.php
product, vendor-advisory
-
bdu.fstec.ru
/vul/2020-04623
third-party-advisory
-
github.com
/Security-AVS/CVE-2020-16270
third-party-advisory
Sources
- CVE List CVE-2020-16270
- NVD CVE-2020-16270
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