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CVE-2023-27891

24
FAUCET Score

CVE-2023-27891 is a high-severity vulnerability affecting rami.io pretix versions prior to 4.17.1, allowing unauthorized OAuth application authorization from a logged-out session. With a CVSS score of 7.5, this vulnerability is easily exploitable over the network without user interaction, potentially leading to high confidentiality impact. Despite its severity, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.16.0, < 4.15.1CPE matchmatch criteria
cpe:2.3:a:rami:pretix:*:*:*:*:*:*:*:*
4.16.0CPE matchmatch criteria
cpe:2.3:a:rami:pretix:4.16.0:*:*:*:*:*:*:*
4.17.0CPE matchmatch criteria
cpe:2.3:a:rami:pretix:4.17.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.62%
Probability of exploitation in next 30 days
EPSS Percentile
46.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0062 is in the 23rd percentile among its peer group of 51,553 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 (3)

pippatch availablevia ghsa
Product: pretixFixed in: 4.17.1
pippatch availablevia ghsa
Product: pretixFixed in: 4.16.1
pippatch availablevia ghsa
Product: pretixFixed in: 4.15.1

Vendor Advisories (1)

pipGHSA-r76w-3wwq-jv6vhigh

Insufficient Session Expiration in pretix

Mar 7, 2023

References

pretix.eu / about/en/blog/20230306-release-4171
Vendor Advisory