OMENWAVE modelled vulnerability-chaining pathways

CVE-2023-5631

Roundcube before 1.4.15, 1.5.x before 1.5.5, and 1.6.x before 1.6.4 allows stored XSS via an HTML e-mail message with a crafted SVG document because of program/lib/Roundcube/rcube_washtml.php behavior. This could allow a remote attacker to load arbitrary JavaScript code.

5.4
CVSS Medium
76.3%
EPSS p100
YES
In CISA KEV

Data as of 2 Nov 2026 · NVD, CISA KEV, EPSS

Why chaining, at machine speed

Defenders still triage vulnerabilities one CVE at a time, while increasingly automated attackers combine them at machine speed. Omenwave models the plausible pathways by which this CVE could be chained with others — surfacing them for research and awareness, with evidence for each step.

Modelled capability profile
Kill-chain stage
CRED_ACCESS
Requires
USER access, NETWORK vector, user interaction
Grants
USER access
Capabilities
credential accessinformation disclosuredata tampering
Model confidence
high · CVSS 3.1
Top plausible next hops
CVE-2025-49113CRED_ACCESS → EXECUTIONhigh plausibility · KEV

The access level the source grants already meets or exceeds the access level the destination requires — the position carries over.

Roundcube Webmail before 1.5.10 and 1.6.x before 1.6.11 allows remote code execution by authenticated users because the _from parameter in a URL is n…

CVE-2021-39144CRED_ACCESS → PRIV_ESChigh plausibility · KEV

The access level the source grants already meets or exceeds the access level the destination requires — the position carries over.

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker has suffi…

CVE-2016-3714CRED_ACCESS → EXECUTIONhigh plausibility · KEV

The source lands the attacker on the host (code execution or an established foothold), which satisfies the destination's requirement for local access.

The (1) EPHEMERAL, (2) HTTPS, (3) MVG, (4) MSL, (5) TEXT, (6) SHOW, (7) WIN, and (8) PLT coders in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1…

CVE-2021-22204CRED_ACCESS → EXECUTIONhigh plausibility · KEV

The source lands the attacker on the host (code execution or an established foothold), which satisfies the destination's requirement for local access.

Improper neutralization of user data in the DjVu file format in ExifTool versions 7.44 and up allows arbitrary code execution when parsing the malici…

CVE-2021-3156CRED_ACCESS → EXECUTIONhigh plausibility · KEV

The source lands the attacker on the host (code execution or an established foothold), which satisfies the destination's requirement for local access.

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudo…

Open in the interactive explorer →
Embed this snapshot

Paste this into a blog post or report — it renders a compact, exploit-free chain snapshot.

Modelled plausible chaining potential derived from public CVE metadata (CVSS, CWE, CPE). Not a confirmed real-world exploit chain and contains no exploitation detail. For research and awareness only.

Methodology · Interactive explorer · JSON: /cve/CVE-2023-5631