CVE-2026-75003

5.8 MEDIUM 0.4% exploit odds Fix listed Auth & access

What it is

In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, an unclosed url() in a FuncIRI attribute of an SVG image could evade the remote image blocking, which may lead to information disclosure or privilege escalation.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-08-17 13:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-09-10 19:18 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 0.4% in the next 30 days (EPSS).
Severity: 5.8 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2026-08-17 13:16 UTC
Last modified: 2026-09-10 19:18 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-669
Record status: Analyzed

Affected

Roundcube Webmail < 1.6.18
Roundcube Webmail < 1.7.3

Attack profile CVSS 3.1 · 5.8

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Changed
Confidentiality: Low
Integrity: None
Availability: None

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2026-75003.md and follow it. Check whether this project is affected by CVE-2026-75003. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record