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CVE-2021-43778

66
FAUCET Score

CVE-2021-43778 is a path traversal vulnerability affecting the Barcode plugin (versions prior to 2.6.1) for GLPI instances. This vulnerability allows an unauthenticated attacker to access arbitrary files on the server. With a CVSS score of 7.5 (HIGH), it presents a significant risk due to its low attack complexity and high impact on confidentiality. While not listed in CISA's KEV catalog, public Nuclei templates exist for detection, and the vulnerability has garnered substantial community discussion, indicating potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0, < 2.6.1CPE matchmatch criteria
cpe:2.3:a:glpi-project:barcode:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
52.66%
Probability of exploitation in next 30 days
EPSS Percentile
98.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2021-43778 · Dec 1, 2021
This CVE's current EPSS score of 0.5266 is in the 98th percentile among its peer group of 51,551 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / hansmach1ne/CVE-portfolio/tree/main/CVE-2021-43778
github.com / hansmach1ne/MyExploits/tree/main/Path%20Traversal%20in%20GLPI%20Barcode%20plugin
ExploitThird Party Advisory
github.com / pluginsGLPI/barcode/commit/428c3d9adfb446e8492b1c2b7affb3d34072ff46
PatchThird Party Advisory
github.com / pluginsGLPI/barcode/releases/tag/2.6.1
Release NotesThird Party Advisory
github.com / pluginsGLPI/barcode/security/advisories/GHSA-2pjh-h828-wcw9
PatchThird Party Advisory