CVE-2020-16270

Name: CVE-2020-16270
Creator: NVD / NIST
Published: 2020-10-16T14:15:11.72+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 13.11%

Last modified Jun 17, 2026

CVE-2020-16270 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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. EPSS estimates a 13.11% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

13.11%

95.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Olimpoks	Olimpok	< 3.3.39

References

https://bdu.fstec.ru/vul/2020-04623Third Party Advisory
https://github.com/Security-AVS/CVE-2020-16270Third Party Advisory
https://olimpoks.ru/oks/forum/olimpoks5.phpProduct, Vendor Advisory
https://bdu.fstec.ru/vul/2020-04623Third Party Advisory
https://github.com/Security-AVS/CVE-2020-16270Third Party Advisory
https://olimpoks.ru/oks/forum/olimpoks5.phpProduct, Vendor Advisory

Timeline

Published: Oct 16, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-16270?

How severe is CVE-2020-16270?

CVE-2020-16270 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 13.11% probability of exploitation in the next 30 days.

How do I fix CVE-2020-16270?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-16270?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST