PT-2023-24728 · Zimbra · Zimbra Zcs

Noah-Lab + 1 · Published 2023-07-06 · Updated 2025-10-27 · CVE-2023-34192

Positive Technologies (AI Summary)

CVSS v3.1

9.0

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Zimbra ZCS version 8.8.15

Description The issue is a Cross Site Scripting vulnerability that allows a remote authenticated attacker to execute arbitrary code via a crafted script to the "/h/autoSaveDraft" function. This vulnerability is actively exploited by hackers.

Recommendations For Zimbra ZCS version 8.8.15, consider disabling the /h/autoSaveDraft function as a temporary workaround until a patch is available. Restrict access to this function to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Special Elements Injection

XSS

Weakness Enumeration

CWE-74

CWE-79

Related Identifiers

BDU:2023-04305

CVE-2023-34192

Affected Products

Zimbra Zcs

References · 52

• https://nvd.nist.gov/vuln/detail/CVE-2023-34192 · Security Note
• https://wiki.zimbra.com/wiki/Security_Center · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-34192 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-04305 · Security Note
• https://twitter.com/TheHackersNews/status/1894606912504942968 · Twitter Post
• https://twitter.com/JOE_HACKER1/status/1902816770781540508 · Twitter Post
• https://t.me/thehackernews/6399 · Telegram Post
• https://twitter.com/Mr_James_Cyber/status/1902708524712427773 · Twitter Post
• https://twitter.com/krishna75800113/status/1894678478467092763 · Twitter Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-34192 · Note
• https://twitter.com/Numero_Hacks/status/1911509811725832607 · Twitter Post
• https://twitter.com/Indusface/status/1737346176935198753 · Twitter Post
• https://twitter.com/THEHACKERPRK/status/1936559706559902110 · Twitter Post
• https://helpnetsecurity.com/2023/07/17/cve-2023-34192 · Note
• https://twitter.com/Herbert_Termux/status/1902498859432992925 · Twitter Post