CVE-2021-33904
In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-33904- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-33904- Updated
- 2026-11-02
EUVDEUVD-2021-20576 No score
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.
- Record
EUVD-2021-20576- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-w8x8-8rp7-r92g
In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is...
In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is vulnerable to XSS.
- Record
GHSA-w8x8-8rp7-r92g- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Accela Civic Platform 21.1 - 'servProvCode' Cross-Site-Scripting (XSS) | 2021-06-11 |
| Nuclei | Accela Civic Platform <=21.1 - Cross-Site Scripting |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, Nuclei, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-33904 is a medium vulnerability (CVSS 6.1) in Accela Civic Platform, published June 7, 2021. Its validity is disputed. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 9.97%, the 95th percentile.