CVE-2023-29218

Name: CVE-2023-29218
Creator: NVD / NIST
Published: 2023-04-03T21:15:07.237+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.09%

Last modified Jun 17, 2026

CVE-2023-29218 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The Twitter Recommendation Algorithm through ec83d01 allows attackers to cause a denial of service (reduction of reputation score) by arranging for multiple Twitter accounts to coordinate negative signals regarding a target account, such as unfollowing, muting, blocking, and reporting, as exploited in the wild in March and April 2023. NOTE: Vendor states that allowing users to unfollow, mute, block, and report tweets and accounts and the impact of these negative engagements on Twitter’s ranking algorithm is a conscious design decision, rather than a security vulnerability.. EPSS estimates a 1.09% chance of exploitation in the next 30 days.

Description

The Twitter Recommendation Algorithm through ec83d01 allows attackers to cause a denial of service (reduction of reputation score) by arranging for multiple Twitter accounts to coordinate negative signals regarding a target account, such as unfollowing, muting, blocking, and reporting, as exploited in the wild in March and April 2023. NOTE: Vendor states that allowing users to unfollow, mute, block, and report tweets and accounts and the impact of these negative engagements on Twitter’s ranking algorithm is a conscious design decision, rather than a security vulnerability.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.09%

61.2th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Twitter	Recommendation Algorithm	<= 2023-03-31

References

https://github.com/twitter/the-algorithm/issues/1386Issue Tracking, Third Party Advisory
https://github.com/twitter/the-algorithm/tree/ec83d01dcaebf369444d75ed04b3625a0a645eb9Product
https://steventey.com/blog/twitter-algorithmProduct
https://twitter.com/Kaptain_Kobold/status/1642379706925477888Third Party Advisory
https://twitter.com/aakashg0/status/1641976913165180929Third Party Advisory
https://twitter.com/elonmusk/status/1642324821324230657Third Party Advisory
https://github.com/twitter/the-algorithm/issues/1386Issue Tracking, Third Party Advisory
https://github.com/twitter/the-algorithm/tree/ec83d01dcaebf369444d75ed04b3625a0a645eb9Product
https://steventey.com/blog/twitter-algorithmProduct
https://twitter.com/Kaptain_Kobold/status/1642379706925477888Third Party Advisory
https://twitter.com/aakashg0/status/1641976913165180929Third Party Advisory
https://twitter.com/elonmusk/status/1642324821324230657Third Party Advisory

Timeline

Published: Apr 3, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-29218?

How severe is CVE-2023-29218?

CVE-2023-29218 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.

How do I fix CVE-2023-29218?

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-2023-29218?

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

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Source: NVD / NIST