CVE-2021-31537

Name: CVE-2021-31537
Creator: NVD / NIST
Published: 2021-05-11T15:15:08.55+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 7.78%

Last modified Jun 17, 2026

CVE-2021-31537 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. SIS SIS-REWE Go before 7.7 SP17 allows XSS: rewe/prod/web/index.php (affected parameters are config, version, win, db, pwd, and user) and /rewe/prod/web/rewe_go_check.php (version and all other parameters).. EPSS estimates a 7.78% chance of exploitation in the next 30 days.

Description

SIS SIS-REWE Go before 7.7 SP17 allows XSS: rewe/prod/web/index.php (affected parameters are config, version, win, db, pwd, and user) and /rewe/prod/web/rewe_go_check.php (version and all other parameters).

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

7.78%

93.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Sisinformatik	Sis-Rewe Go	< 7.7
Sisinformatik	Sis-Rewe Go	7.7

References

http://seclists.org/fulldisclosure/2021/May/20Exploit, Mailing List, Third Party Advisory
https://sec-consult.com/vulnerability-lab/advisory/reflected-xss-sis-infromatik-rewe-go-cve-2021-31537/Exploit, Third Party Advisory
https://sisinformatik.com/rewe-go/Vendor Advisory
http://seclists.org/fulldisclosure/2021/May/20Exploit, Mailing List, Third Party Advisory
https://sec-consult.com/vulnerability-lab/advisory/reflected-xss-sis-infromatik-rewe-go-cve-2021-31537/Exploit, Third Party Advisory
https://sisinformatik.com/rewe-go/Vendor Advisory

Timeline

Published: May 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31537?

How severe is CVE-2021-31537?

CVE-2021-31537 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 7.78% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31537?

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-2021-31537?

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

Scan your code now

Source: NVD / NIST