XSS in Wire Wire-Webapp
CVE-2022-24799
wire-webapp is the web application interface for the wire messaging service. Insufficient escaping in markdown “code highlighting” in the wire-webapp resulted in the possibility of injecting and executing arbitrary HTML code and thus also JavaScript. If a user receives and views such a malicious message, arbitrary code is injected and executed in the context of the victim. This allows the attacker to fully control the user account. Wire-desktop clients that are connected to a vulnerable wire-webapp version are also vulnerable to this attack. The issue has been fixed in wire-webapp 2022-03-30-production.0 and is already deployed on all Wire managed services. On-premise instances of wire-webapp need to be updated to docker tag 2022-03-30-production.0-v0.29.2-0-d144552 or wire-server 2022-03-30 (chart/4.8.0), so that their applications are no longer affected. There are no known workarounds for this issue. ### Patches * The issue has been fixed in wire-webapp **2022-03-30-production.0** and is already deployed on all Wire managed services. * On-premise instances of wire-webapp need to be updated to docker tag **2022-03-30-production.0-v0.29.2-0-d144552** or wire-server **2022-03-30 (chart/4.8.0)**, so that their applications are no longer affected. ### Workarounds * No workarounds known ### For more information If you have any questions or comments about this advisory feel free to email us at [vulnerability-report@wire.com](mailto:vulnerability-report@wire.com) ### Credits We thank [Posix](https://twitter.com/po6ix) for reporting this vulnerability
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (61.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 61.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000
Affected products
- Wire Wire-Webapp — versions 2016-07-29-17-00, 2016-08-04-15-44, 2016-08-23-09-31
- Wireapp Wire-Webapp — versions < 2022-03-30-production.0
Weakness classification (CWE)
References
- github.com/wireapp/wire-webapp/security/advisories/GHSA-5568-rfh8-vmhq (Third Party Advisory)
- github.com/wireapp/wire-webapp/commit/d14455252a949dc83f36d45e2babbdd9328af2a4 (Patch, Third Party Advisory)
- github.com/wireapp/wire-webapp/releases/tag/2022-03-30-production.0 (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-24799?
- CVE-2022-24799 is a critical-severity vulnerability in Wire Wire-Webapp, classified under Cross-site Scripting. CVSS score: 9.6/10. Published 2022-04-20.
- How severe is CVE-2022-24799?
- Critical severity. CVSS v3 base score is 9.6 out of 10.