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CVE-2023-28440

LOWCVSS 2.7/10EPSS 0.69%

Last modified

CVE-2023-28440 is a low-severity vulnerability rated 2.7/10 on the CVSS scale. Discourse is an open source platform for community discussion. In affected versions a maliciously crafted request from a Discourse administrator can lead to a long-running request and eventual timeout. EPSS estimates a 0.69% chance of exploitation in the next 30 days.

Description

Discourse is an open source platform for community discussion. In affected versions a maliciously crafted request from a Discourse administrator can lead to a long-running request and eventual timeout. This has the greatest potential impact in shared hosting environments where admins are untrusted. This issue has been addressed in versions 3.0.3 and 3.1.0.beta4. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Metrics

CVSS 3.1
2.7/10

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

EPSS Probability
0.69%

48.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
DiscourseDiscourse< 3.0.3—
DiscourseDiscourse1.1.0Beta1
DiscourseDiscourse1.2.0Beta1
DiscourseDiscourse1.3.0Beta1
DiscourseDiscourse1.4.0Beta1
DiscourseDiscourse1.5.0Beta1
DiscourseDiscourse1.6.0Beta1
DiscourseDiscourse1.7.0Beta1
DiscourseDiscourse1.8.0Beta1
DiscourseDiscourse1.9.0Beta1
DiscourseDiscourse2.0.0Beta1
DiscourseDiscourse2.1.0Beta1
DiscourseDiscourse2.2.0Beta1
DiscourseDiscourse2.3.0Beta1
DiscourseDiscourse2.4.0Beta1
DiscourseDiscourse2.5.0Beta1
DiscourseDiscourse2.6.0Beta1
DiscourseDiscourse2.7.0Beta1
DiscourseDiscourse2.8.0Beta1
DiscourseDiscourse2.9.0Beta1
DiscourseDiscourse3.0.0Beta15
DiscourseDiscourse3.1.0Beta1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-28440?
Discourse is an open source platform for community discussion. In affected versions a maliciously crafted request from a Discourse administrator can lead to a long-running request and eventual timeout. This has the greatest potential impact in shared hosting environments where admins are untrusted. This issue has been addressed in versions 3.0.3 and 3.1.0.beta4. Users are advised to upgrade. There are no known workarounds for this vulnerability.
How severe is CVE-2023-28440?
CVE-2023-28440 has a CVSS score of 2.7/10 (LOW severity). The EPSS model estimates a 0.69% probability of exploitation in the next 30 days.
How do I fix CVE-2023-28440?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-28440?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST