CVE-2018-18655
Prayer through 1.3.5 sends a Referer header, containing a user's username, when a user clicks on...
Prayer through 1.3.5 sends a Referer header, containing a user's username, when a user clicks on a link in their email because header.t lacks a no-referrer setting.
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
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Prayer through 1.3.5 sends a Referer header, containing a user's username, when a user clicks on a link in their email because header.t lacks a no-referrer setting.
- Record
CVE-2018-18655- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE List No score
Prayer through 1.3.5 sends a Referer header, containing a user's username, when a user clicks on a link in their email because header.t lacks a no-referrer setting.
- Record
CVE-2018-18655- Updated
- 2026-11-02
EUVDEUVD-2018-10371 No score
Prayer through 1.3.5 sends a Referer header, containing a user's username, when a user clicks on a link in their email because header.t lacks a no-referrer setting.
- Record
EUVD-2018-10371- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-h8f8-mfm9-grf3
Prayer through 1.3.5 sends a Referer header, containing a user's username, when a user clicks on...
Prayer through 1.3.5 sends a Referer header, containing a user's username, when a user clicks on a link in their email because header.t lacks a no-referrer setting.
- Record
GHSA-h8f8-mfm9-grf3- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSV
Prayer through 1.3.5 sends a Referer header, containing a user's username, when a user clicks on a link in their email because header.t lacks a no-referrer setting.
- Record
CVE-2018-18655- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-18655
Prayer through 1.3.5 sends a Referer header, containing a user's username, when a user clicks on a link in their email because header.t lacks a no-referrer setting.
- Record
DEBIAN-CVE-2018-18655- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-18655
Prayer through 1.3.5 sends a Referer header, containing a user's username, when a user clicks on a link in their email because header.t lacks a no-referrer setting.
- Record
UBUNTU-CVE-2018-18655- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
prayerDebian:11 |
before 1.3.5-dfsg1-5 | 1.3.5-dfsg1-5 |
prayerUbuntu:16.04:LTS |
All versions, plus listed versions 1.3.5-dfsg1-3 |
None known |
prayerUbuntu:18.04:LTS |
All versions, plus listed versions 1.3.5-dfsg1-41.3.5-dfsg1-4build1 |
None known |
prayerUbuntu:20.04:LTS |
All versions, plus listed versions 1.3.5-dfsg1-6build11.3.5-dfsg1-6ubuntu11.3.5-dfsg1-6.1 |
None known |
prayerUbuntu:22.04:LTS |
All versions, plus listed versions 1.3.5-dfsg1-8build11.3.5-dfsg1-8build2 |
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-2018-18655 is a medium vulnerability (CVSS 4.3) in Prayer Project Prayer, published October 26, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.84%, the 58th percentile. Fixed in prayer 1.3.5-dfsg1-5.
