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CVE-2021-4313

31
FAUCET Score

CVE-2021-4313 is a critical SQL injection vulnerability affecting the NethServer phonenehome project, specifically within the get_info/get_country_coor function of the server/index.php file. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network without authentication, allowing for complete compromise of confidentiality, integrity, and availability. While a patch (759c30b0ddd7d493836bbdf695cf71624b377391) is available, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this flaw.

Impacted Technologies

VendorProductVersion(s)CPE
< 2021-09-28CPE matchmatch criteria
cpe:2.3:a:nethserver-phonenehome_project:nethserver-phonenehome:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.1
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 30th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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 / NethServer/nethserver-phonehome/commit/759c30b0ddd7d493836bbdf695cf71624b377391
Patch
github.com / NethServer/nethserver-phonehome/pull/10
Patch
vuldb.com
Third Party Advisory
vuldb.com
Third Party Advisory