CVE-2026-73477
Quick Tabs - Moderately critical - Access bypass - SA-CONTRIB-2026-099
Incorrect Authorization vulnerability in Drupal Quick Tabs allows Forceful Browsing. This issue affects Quick Tabs versions: from 0.0.0 to 4.3.1.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Quick Tabs - Moderately critical - Access bypass - SA-CONTRIB-2026-099
Incorrect Authorization vulnerability in Drupal Quick Tabs allows Forceful Browsing. This issue affects Quick Tabs versions: from 0.0.0 to 4.3.1.
- Record
CVE-2026-73477- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
EUVDEUVD-2026-69989
Incorrect Authorization vulnerability in Drupal Quick Tabs allows Forceful Browsing. This issue affects Quick Tabs versions: from 0.0.0 to 4.3.1.
- Record
EUVD-2026-69989- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4j22-v3g2-gfc3
Incorrect Authorization vulnerability in Drupal Quick Tabs allows Forceful Browsing. This issue...
Incorrect Authorization vulnerability in Drupal Quick Tabs allows Forceful Browsing. This issue affects Quick Tabs versions: from 0.0.0 to 4.3.1.
- Record
GHSA-4j22-v3g2-gfc3- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
NVD
Incorrect Authorization vulnerability in Drupal Quick Tabs allows Forceful Browsing. This issue affects Quick Tabs versions: from 0.0.0 to 4.3.1.
- Record
CVE-2026-73477- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSV
Quick Tabs - Moderately critical - Access bypass - SA-CONTRIB-2026-099
Incorrect Authorization vulnerability in Drupal Quick Tabs allows Forceful Browsing. This issue affects Quick Tabs versions: from 0.0.0 to 4.3.1.
- Record
CVE-2026-73477- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-863
- Updated
- 2026-11-02
OSVDRUPAL-CONTRIB-2026-099 No score
This module enables you to display content in tabs, where each tab renders a block, a node, a view, or another Quick Tabs instance.
The module did not correctly enforce access when rendering node and block tabs. It treated a neutral access result as a grant for node tabs and block plugins, and performed no access check for reusable custom blocks. Content that should have been denied was therefore rendered — for example, an unpublished node or unpublished reusable custom block could be shown to users without permission to view it.
The access bypass is mitigated by the fact that affected content is selected by a user with the “administer quicktabs” permission when the tab is configured, so an attacker cannot choose which content is exposed.
- Record
DRUPAL-CONTRIB-2026-099- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
drupal/quicktabsPackagist:https://packages.drupal.org/8 |
before 4.3.1 | 4.3.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-73477 is a medium vulnerability (CVSS 5.3) in Drupal Quick Tabs, published August 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.32%, the 24th percentile. Fixed in drupal/quicktabs 4.3.1.