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CVE-2015-8793

17
FAUCET Score

CVE-2015-8793 describes a Cross-site Scripting (XSS) vulnerability in Roundcube webmail versions prior to 1.0.6 and 1.1.2. This flaw allows remote attackers to inject malicious web scripts or HTML into a user's browser by manipulating the _mbox parameter within a mail task. Rated with a CVSS score of 6.1 (Medium), the vulnerability has a low attack complexity and requires user interaction, potentially leading to limited impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.5CPE matchmatch criteria
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
1.1.0CPE matchmatch criteria
cpe:2.3:a:roundcube:webmail:1.1.0:*:*:*:*:*:*:*
1.1.1CPE matchmatch criteria
cpe:2.3:a:roundcube:webmail:1.1.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.39%
Probability of exploitation in next 30 days
EPSS Percentile
69.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0139 is in the 82nd percentile among its peer group of 26,236 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

roundcube.net / news/2015/06/05/updates-1.1.2-and-1.0.6-released
PatchVendor Advisory
trac.roundcube.net / ticket/1490417
ExploitIssue TrackingPatch
trac.roundcube.net / wiki/Changelog
Release Notes