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Vulnerability record · CVE-2021-33904 · published 7 June 2021

CVE-2021-33904: Accela civic platform cross-site scripting vulnerability

Accela · Civic Platform

In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is vulnerable to XSS. NOTE: The vendor states "there are configurable security flags and we are unable to reproduce them with the available information.

6.1 CVSS 3.1 Medium EPSS 10.0% · top 4.6% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score, v2 4.3
10.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is vulnerable to XSS. NOTE: The vendor states "there are configurable security flags and we are unable to reproduce them with the available information.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://packetstormsecurity.com/files/163093/Accela-Civic-Platorm-21.1-Cross-Site-Scripting.html ExploitThird Party AdvisoryVDB Entry
https://gist.github.com/0xx7/3d934939d7122fe23db11bc48eda9d21 Third Party Advisory
http://packetstormsecurity.com/files/163093/Accela-Civic-Platorm-21.1-Cross-Site-Scripting.html ExploitThird Party AdvisoryVDB Entry
https://gist.github.com/0xx7/3d934939d7122fe23db11bc48eda9d21 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2021-33904), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.