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CVE-2023-2259

19
FAUCET Score

CVE-2023-2259 is a high-severity vulnerability affecting alf.io versions prior to 2.0-M4-2304, stemming from improper neutralization of special elements within its template engine. This flaw allows a highly privileged attacker to achieve full compromise (confidentiality, integrity, and availability) of the system with low attack complexity over a network. While the CVSS score is 7.2, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.0-m4-2304CPE matchmatch criteria
cpe:2.3:a:alf:alf:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.1CRITICAL

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.09%
Probability of exploitation in next 30 days
EPSS Percentile
61.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0109 is in the 51st percentile among its peer group of 5,531 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 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 / alfio-event/alf.io/commit/94e2923a317452e337393789c9f3192dfc1ddac2
Patch
huntr.dev / bounties/e753bce0-ce82-463b-b344-2f67b39b60ff
ExploitThird Party Advisory