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CVE-2021-3027

21
FAUCET Score

CVE-2021-3027 describes an LDAP Injection vulnerability in LibrIT PaSSHport through version 2.5, specifically within the app/views_mod/user/user.py component. This flaw allows for an information leak due to unsanitized user input in search queries, enabling attackers to bypass intended filters. Rated as Medium severity with a CVSS score of 6.5, it can be exploited remotely with low privileges (AV:N/PR:L) to achieve high confidentiality impact (C:H) without user interaction. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.5CPE matchmatch criteria
cpe:2.3:a:librit:passhport:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.17%
Probability of exploitation in next 30 days
EPSS Percentile
64.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0117 is in the 78th percentile among its peer group of 21,958 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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 / LibrIT/passhport/commit/366b03f607729c4538e91b634ecc57c8398522a1
PatchThird Party Advisory
github.com / LibrIT/passhport/pull/562
PatchThird Party Advisory
jorgectf.gitlab.io / disclosure/cve-2021-3027
Third Party Advisory