CVE-2015-8794

Absolute path traversal vulnerability in program/steps/addressbook/photo.inc in Roundcube before 1.0.6 and 1.1.x before 1.1.2 allows remote authenticated users to read arbitrary files via a full pathname in the _alt parameter, related to contact photo handling.

Published: 2016-01-29 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2015-8794 is rated Moderate Risk (55.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.12%). Core evidence: EPSS rose +1.83% over the last day, indicating growing attacker interest. Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-8794

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.29% 2.12% +1.83%
2 2025-07-07 0.43% 0.29% -0.14%
3 2025-03-30 0.43%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-8794

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
2.8 3.6 [email protected]
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
8.0 2.9 [email protected]

Weakness enumeration for CVE-2015-8794

OS Trackers for CVE-2015-8794

vendor priority summary link
debian not yet assigned CVE-2015-8794 not yet assigned priority: Debian including 1 source packages (roundcube), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-8794
ubuntu medium CVE-2015-8794 medium priority: Ubuntu including 1 source packages (roundcube), 12 status rows across 12 suites (artful, bionic, cosmic, disco, precise, trusty, upstream, vivid, wily, xenial, yakkety, zesty): ignored 6, not-affected 4, DNE 1, released 1. https://ubuntu.com/security/CVE-2015-8794

Affected software / configurations for CVE-2015-8794

Vendor Product Version Raw CPE
roundcube roundcube_webmail <= 1.0.5 cpe:2.3:a:roundcube:roundcube_webmail:*:*:*:*:*:*:*:*
roundcube roundcube_webmail 1.1.0 cpe:2.3:a:roundcube:roundcube_webmail:1.1.0:*:*:*:*:*:*:*
roundcube roundcube_webmail 1.1.1 cpe:2.3:a:roundcube:roundcube_webmail:1.1.1:*:*:*:*:*:*:*

References for CVE-2015-8794

cvelogic Threat Intelligence