CVE-2020-8034
Gollem before 3.0.13, as used in Horde Groupware Webmail Edition 5.2.22 and other products, is...
Gollem before 3.0.13, as used in Horde Groupware Webmail Edition 5.2.22 and other products, is affected by a reflected Cross-Site Scripting (XSS) vulnerability via the HTTP GET dir parameter in the browser functionality, affecting breadcrumb output. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
6.1
Gollem before 3.0.13, as used in Horde Groupware Webmail Edition 5.2.22 and other products, is affected by a reflected Cross-Site Scripting (XSS) vulnerability via the HTTP GET dir parameter in the browser functionality, affecting breadcrumb output. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.
- Record
CVE-2020-8034- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Gollem before 3.0.13, as used in Horde Groupware Webmail Edition 5.2.22 and other products, is affected by a reflected Cross-Site Scripting (XSS) vulnerability via the HTTP GET dir parameter in the browser functionality, affecting breadcrumb output. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.
- Record
CVE-2020-8034- Updated
- 2026-11-02
EUVDEUVD-2020-28946 No score
Gollem before 3.0.13, as used in Horde Groupware Webmail Edition 5.2.22 and other products, is affected by a reflected Cross-Site Scripting (XSS) vulnerability via the HTTP GET dir parameter in the browser functionality, affecting breadcrumb output. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.
- Record
EUVD-2020-28946- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4653-jj47-h6j5 No score
Gollem before 3.0.13, as used in Horde Groupware Webmail Edition 5.2.22 and other products, is...
Gollem before 3.0.13, as used in Horde Groupware Webmail Edition 5.2.22 and other products, is affected by a reflected Cross-Site Scripting (XSS) vulnerability via the HTTP GET dir parameter in the browser functionality, affecting breadcrumb output. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.
- Record
GHSA-4653-jj47-h6j5- Updated
- 2026-11-02
OSV
6.1
Gollem before 3.0.13, as used in Horde Groupware Webmail Edition 5.2.22 and other products, is affected by a reflected Cross-Site Scripting (XSS) vulnerability via the HTTP GET dir parameter in the browser functionality, affecting breadcrumb output. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.
- Record
CVE-2020-8034- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2020-8034
6.1
Gollem before 3.0.13, as used in Horde Groupware Webmail Edition 5.2.22 and other products, is affected by a reflected Cross-Site Scripting (XSS) vulnerability via the HTTP GET dir parameter in the browser functionality, affecting breadcrumb output. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.
- Record
DEBIAN-CVE-2020-8034- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-8034
6.1
Gollem before 3.0.13, as used in Horde Groupware Webmail Edition 5.2.22 and other products, is affected by a reflected Cross-Site Scripting (XSS) vulnerability via the HTTP GET dir parameter in the browser functionality, affecting breadcrumb output. An attacker can obtain access to a victim's webmail account by making them visit a malicious URL.
- Record
UBUNTU-CVE-2020-8034- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
php-horde-gollemDebian:12 |
before 3.0.12-6 | 3.0.12-6 |
php-horde-gollemDebian:8 |
before 3.0.3-2+deb8u1, plus listed versions 3.0.3-2 |
3.0.3-2+deb8u1 |
php-horde-gollemUbuntu:16.04:LTS |
All versions, plus listed versions 3.0.5-13.0.6-13.0.7-13.0.7-1build1 |
None known |
php-horde-gollemUbuntu:18.04:LTS |
All versions, plus listed versions 3.0.11-13.0.12-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-8034 is a medium vulnerability (CVSS 6.1) in Horde Gollem, published May 18, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.97%, the 62nd percentile. Fixed in php-horde-gollem 3.0.12-6.
References
github.com/horde/gollem/commits/master
lists.horde.org/archives/gollem/Week-of-Mon-20200420/001990.html
github.com/horde/gollem/blob/95b2a4212d734f1b27aaa7a221d2fa1370d2631f/docs/CHANGES
lists.horde.org/archives/announce/2020/001289.html
lists.debian.org/debian-lts-announce/2020/05/msg00033.html
nvd.nist.gov/vuln/detail/CVE-2020-8034