CVE-2021-26903

Name: CVE-2021-26903
Creator: NVD / NIST
Published: 2021-02-26T15:15:12.257+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.98%

Last modified Jun 17, 2026

CVE-2021-26903 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. LMA ISIDA Retriever 5.2 is vulnerable to XSS via query['text'].. EPSS estimates a 0.98% chance of exploitation in the next 30 days.

Description

LMA ISIDA Retriever 5.2 is vulnerable to XSS via query['text'].

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

0.98%

57.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Isida	Retriever	5.2

References

https://github.com/Security-AVS/CVE-2021-26903Third Party Advisory
https://www.isida.by/category/news/Vendor Advisory
https://github.com/Security-AVS/CVE-2021-26903Third Party Advisory
https://www.isida.by/category/news/Vendor Advisory

Timeline

Published: Feb 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-26903?

LMA ISIDA Retriever 5.2 is vulnerable to XSS via query['text'].

How severe is CVE-2021-26903?

CVE-2021-26903 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.

How do I fix CVE-2021-26903?

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-2021-26903?

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

Scan your code now

Source: NVD / NIST