CVE-2020-15156
XSS due to lack of CSRF validation for replying/publishing
In nodebb-plugin-blog-comments before version 0.7.0, a logged in user is vulnerable to an XSS attack which could allow a third party to post on their behalf on the forum. This is due to lack of CSRF validation.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
XSS due to lack of CSRF validation for replying/publishing
In nodebb-plugin-blog-comments before version 0.7.0, a logged in user is vulnerable to an XSS attack which could allow a third party to post on their behalf on the forum. This is due to lack of CSRF validation.
- Record
CVE-2020-15156- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-352
- Updated
- 2026-11-02
EUVDEUVD-2020-0586
In nodebb-plugin-blog-comments before version 0.7.0, a logged in user is vulnerable to an XSS attack which could allow a third party to post on their behalf on the forum. This is due to lack of CSRF validation.
- Record
EUVD-2020-0586- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-43m5-c88r-cjvv
XSS due to lack of CSRF validation for replying/publishing
Impact
Due to lack of CSRF validation, a logged in user is potentially vulnerable to an XSS attack which could allow a third party to post on their behalf on the forum.
Patches
Upgrade to the latest version v0.7.0
Workarounds
You can cherry-pick the following commit: https://github.com/psychobunny/nodebb-plugin-blog-comments/commit/cf43beedb05131937ef46f365ab0a0c6fa6ac618
References
Visit https://community.nodebb.org if you have any questions about this issue or on how to patch / upgrade your instance.
- Record
GHSA-43m5-c88r-cjvv- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-352
- Updated
- 2026-11-02
NVD
In nodebb-plugin-blog-comments before version 0.7.0, a logged in user is vulnerable to an XSS attack which could allow a third party to post on their behalf on the forum. This is due to lack of CSRF validation.
- Record
CVE-2020-15156- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-352
- Updated
- 2026-11-02
OSV
In nodebb-plugin-blog-comments before version 0.7.0, a logged in user is vulnerable to an XSS attack which could allow a third party to post on their behalf on the forum. This is due to lack of CSRF validation.
- Record
CVE-2020-15156- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-43m5-c88r-cjvv
XSS due to lack of CSRF validation for replying/publishing
Impact
Due to lack of CSRF validation, a logged in user is potentially vulnerable to an XSS attack which could allow a third party to post on their behalf on the forum.
Patches
Upgrade to the latest version v0.7.0
Workarounds
You can cherry-pick the following commit: https://github.com/psychobunny/nodebb-plugin-blog-comments/commit/cf43beedb05131937ef46f365ab0a0c6fa6ac618
References
Visit https://community.nodebb.org if you have any questions about this issue or on how to patch / upgrade your instance.
- Record
GHSA-43m5-c88r-cjvv- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-352
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
nodebb-plugin-blog-commentsnpm |
before 0.7.0 | 0.7.0 |
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-2020-15156 is a medium vulnerability (CVSS 6.8) in Psychobunny Nodebb-plugin-blog-comments, published August 26, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.61%, the 49th percentile. Fixed in nodebb-plugin-blog-comments 0.7.0.
References
github.com/psychobunny/nodebb-plugin-blog-comments/security/advisories/GHSA-43m5-c88r-cjvv
npmjs.com/package/nodebb-plugin-blog-comments
nvd.nist.gov/vuln/detail/CVE-2020-15156