CVE-2020-8512Public exploitNetwork attack vector

Reflected XSS via unsanitized color parameter

Published Jan 31, 2020 · Updated Aug 4, 2024

Reflected XSS in IceWarp Webmail Server 11.4.4.1 and earlier allows remote attackers to execute script via a crafted webmail URL. The /webmail/ sign-in page reflects the GET color value into page output without neutralizing a tag-breaking SVG payload. No authentication is required to create the URL, but a user or administrator must open it; script then runs in that user's IceWarp origin and can access session data or alter page content.

CVSS severity6.1
Medium
EPSS probability14.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in IceWarp Webmail Server 11.4.4.1 and earlier allows remote attackers to execute script via a crafted webmail URL. The /webmail/ sign-in page reflects the GET color value into page output without neutralizing a tag-breaking SVG payload. No authentication is required to create the URL, but a user or administrator must open it; script then runs in that user's IceWarp origin and can access session data or alter page content.

The record

CVE
CVE-2020-8512
Published
Jan 31, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1566.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 31, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NVDAV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1566.002Spearphishing Link

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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