How severe is CVE-2021-34370?

CVE-2021-34370 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-34370 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-34370?

CVE-2021-34370 affects Accela Civic Platform. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-34370?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-34370 published?

CVE-2021-34370 was published on 2021-06-09 and last updated on 2026-06-17.

CVE-2021-34370

CVE-2021-34370 is a medium-severity vulnerability in Accela Civic Platform with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Accela Civic Platform
Published: 2021-06-09
Last modified: 2026-06-17

Description

Accela Civic Platform through 20.1 allows ssoAdapter/logoutAction.do successURL XSS. NOTE: the vendor states "there are configurable security flags and we are unable to reproduce them with the available information.

Frequently asked questions

What is CVE-2021-34370?: Accela Civic Platform through 20.1 allows ssoAdapter/logoutAction.do successURL XSS. NOTE: the vendor states "there are configurable security flags and we are unable to reproduce them with the available information.
How severe is CVE-2021-34370?: CVE-2021-34370 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-34370 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-34370?: CVE-2021-34370 affects Accela Civic Platform. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-34370?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-34370 published?: CVE-2021-34370 was published on 2021-06-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:accela:civic_platform:*:*:*:*:*:*:*:*

More vulnerabilities in Accela Civic Platform

CVE-2021-34369 — Medium (CVSS 6.5): portlets/contact/ref/refContactDetail.do in Accela Civic Platform through 20.1 allows remote attackers to obtain…
CVE-2021-33904 — Medium (CVSS 6.1): In Accela Civic Platform through 21.1, the security/hostSignon.do parameter servProvCode is vulnerable to XSS. NOTE:…
CVE-2016-5660 — Medium (CVSS 6.1): Cross-site scripting (XSS) vulnerability in AttachmentsList.aspx in Accela Civic Platform Citizen Access portal allows…

All CVEs affecting Accela Civic Platform →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →