CVE-2018-25269

ICEWARP 11.0.0.0 Cross-Site Scripting via Email HTML Injection

CVSS 5.1 MEDIUMEPSS 0.2%CWE-79

Vexday Risk Score

33Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 5.1EPSS 0.2%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

22 Apr 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

ICEWARP 10.3.4 and 11.0.0.0 contains a cross-site scripting vulnerability that allows attackers to inject malicious HTML elements into emails by embedding base64-encoded payloads in object and embed tags. Attackers can craft emails containing data URIs with embedded scripts that execute in the client when the email is viewed, compromising user sessions and stealing sensitive information.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Affected products

icewarp · ICEWARP Client

public PoCs found — 1

cve_referencewww.exploit-db.com/exploits/45974unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References

https://www.exploit-db.com/exploits/45974 https://www.vulncheck.com/advisories/icewarp-cross-site-scripting-via-email-html-injection http://www.icewarp.com/