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CVE-2020-8034

22
FAUCET Score

CVE-2020-8034 describes a reflected Cross-Site Scripting (XSS) vulnerability in Gollem before version 3.0.13, impacting products like Horde Groupware Webmail Edition 5.2.22. This flaw allows an attacker to inject malicious scripts via the HTTP GET dir parameter in the browser functionality, specifically affecting breadcrumb output. Rated 6.1 MEDIUM, this vulnerability requires user interaction (UI:R) and can lead to partial loss of confidentiality and integrity (C:L/I:L), potentially granting an attacker access to a victim's webmail account. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.0.13CPE matchmatch criteria
cpe:2.3:a:horde:gollem:*:*:*:*:*:*:*:*
5.2.22CPE matchmatch criteria
cpe:2.3:a:horde:groupware:5.2.22:*:*:*:webmail:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 71st percentile among its peer group of 26,234 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / horde/gollem/blob/95b2a4212d734f1b27aaa7a221d2fa1370d2631f/docs/CHANGES
Release NotesThird Party Advisory
github.com / horde/gollem/commits/master
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2020/05/msg00033.html
lists.horde.org / archives/announce/2020/001289.html
Mailing ListVendor Advisory
lists.horde.org / archives/gollem/Week-of-Mon-20200420/001990.html
Mailing ListVendor Advisory