How severe is CVE-2020-27982?

CVE-2020-27982 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-2020-27982 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27982?

CVE-2020-27982 affects Icewarp Mail Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27982?

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

When was CVE-2020-27982 published?

CVE-2020-27982 was published on 2020-11-02 and last updated on 2026-06-17.

CVE-2020-27982

CVE-2020-27982 is a medium-severity vulnerability in Icewarp Mail Server 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: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Icewarp Mail Server
Published: 2020-11-02
Last modified: 2026-06-17

Description

IceWarp 11.4.5.0 allows XSS via the language parameter.

Frequently asked questions

What is CVE-2020-27982?: IceWarp 11.4.5.0 allows XSS via the language parameter.
How severe is CVE-2020-27982?: CVE-2020-27982 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-2020-27982 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27982?: CVE-2020-27982 affects Icewarp Mail Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27982?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-27982 published?: CVE-2020-27982 was published on 2020-11-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:icewarp:mail_server:11.4.5:*:*:*:*:*:*:*

More vulnerabilities in Icewarp Mail Server

CVE-2023-39699 — Critical (CVSS 9.8): IceWarp Mail Server v10.4.5 was discovered to contain a local file inclusion (LFI) vulnerability via the component…
CVE-2020-14066 — High (CVSS 8.8): IceWarp Email Server 12.3.0.1 allows remote attackers to upload JavaScript files that are dangerous for clients to…
CVE-2019-12593 — High (CVSS 7.5): IceWarp Mail Server through 10.4.4 is prone to a local file inclusion vulnerability via…
CVE-2015-1503 — High (CVSS 7.5): Multiple directory traversal vulnerabilities in IceWarp Mail Server before 11.2 allow remote attackers to read…
CVE-2020-14065 — Medium (CVSS 6.5): IceWarp Email Server 12.3.0.1 allows remote attackers to upload files and consume disk space.
CVE-2020-14064 — Medium (CVSS 6.5): IceWarp Email Server 12.3.0.1 has Incorrect Access Control for user accounts.

All CVEs affecting Icewarp Mail Server →

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 →