CVE-2021-26028
[20210308] - Core - Path Traversal within joomla/archive zip class
An issue was discovered in Joomla! 3.0.0 through 3.9.24. Extracting an specifilcy crafted zip package could write files outside of the intended path.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An issue was discovered in Joomla! 3.0.0 through 3.9.24. Extracting an specifilcy crafted zip package could write files outside of the intended path.
- Record
CVE-2021-26028- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
CVE List No score
[20210308] - Core - Path Traversal within joomla/archive zip class
An issue was discovered in Joomla! 3.0.0 through 3.9.24. Extracting an specifilcy crafted zip package could write files outside of the intended path.
- Record
CVE-2021-26028- Updated
- 2026-11-02
EUVDEUVD-2021-0710 No score
An issue was discovered in Joomla! 3.0.0 through 3.9.24. Extracting an specifilcy crafted zip package could write files outside of the intended path.
- Record
EUVD-2021-0710- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-vgwr-773q-7j3c No score
Path Traversal within joomla/archive zip class
An issue was discovered in Joomla! 3.0.0 through 3.9.24. Extracting an specifilcy crafted zip package could write files outside of the intended path.
- Record
GHSA-vgwr-773q-7j3c- Weakness
- CWE-22
- Updated
- 2026-11-02
OSV
An issue was discovered in Joomla! 3.0.0 through 3.9.24. Extracting an specifilcy crafted zip package could write files outside of the intended path.
- Record
CVE-2021-26028- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVBIT-joomla-2021-26028 No score
[20210308] - Core - Path Traversal within joomla/archive zip class
An issue was discovered in Joomla! 3.0.0 through 3.9.24. Extracting an specifilcy crafted zip package could write files outside of the intended path.
- Record
BIT-joomla-2021-26028- Updated
- 2026-11-02
OSVGHSA-vgwr-773q-7j3c No score
Path Traversal within joomla/archive zip class
An issue was discovered in Joomla! 3.0.0 through 3.9.24. Extracting an specifilcy crafted zip package could write files outside of the intended path.
- Record
GHSA-vgwr-773q-7j3c- Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
joomla/archivePackagist |
before 1.1.10 | 1.1.10 |
joomlaBitnami |
3.0.0 up to 3.9.25 | 3.9.25 |
joomla/archivePackagist |
before 1.1.10, plus listed versions 1.01.0-alpha1.0-beta1.0-beta21.0-beta3 Show 10 moreShow less1.1.01.1.11.1.21.1.31.1.41.1.51.1.61.1.71.1.81.1.9 |
1.1.10 |
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-2021-26028 is a medium vulnerability (CVSS 5.5) in Joomla Joomla\!, published March 4, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.01%, the 63rd percentile. Fixed in joomla/archive 1.1.10.
References
developer.joomla.org/security-centre/848-20210308-core-path-traversal-within-joomla-archive-zip-class.html
nvd.nist.gov/vuln/detail/CVE-2021-26028
github.com/joomla-framework/archive/commit/32c9009a1020d16bc1060c0d06339898b697cf2c