CVEs / CVE-2022-36537
CVE-2022-36537: ZK Framework AuUploader Unspecified Vulnerability
- Known exploited in the CISA KEV catalog since 27 Feb 2023
- high 7.5 CVSS 3.1 (NVD)
- EPSS 95.3% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
ZK Framework AuUploader servlets contain an unspecified vulnerability that could allow an attacker to retrieve the content of a file located in the web context. The ZK Framework is an open-source Java framework. This vulnerability can impact multiple products, including but not limited to ConnectWise R1Soft Server Backup Manager.
Description
ZK Framework v9.6.1, 9.6.0.1, 9.5.1.3, 9.0.1.2 and 8.6.4.1 allows attackers to access sensitive information via a crafted POST request sent to the component AuUploader.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
| Product | Affected | Fixed in |
|---|---|---|
| org.zkoss.zk:zk (Maven) | before 8.6.4.2 | 8.6.4.2 |
| org.zkoss.zk:zk (Maven) | from 9.0.0.0, before 9.0.1.3 | 9.0.1.3 |
| org.zkoss.zk:zk (Maven) | from 9.5.0.0, before 9.5.1.4 | 9.5.1.4 |
| org.zkoss.zk:zk (Maven) | from 9.6.0.0, before 9.6.0.2 | 9.6.0.2 |
| org.zkoss.zk:zk (Maven) | from 9.6.1, before 9.6.2 | 9.6.2 |
Package versions from GHSA-6278-2q4m-cmf3.
Exploitation
| In CISA KEV since | 27 Feb 2023 |
|---|---|
| Due date for US federal agencies | 20 Mar 2023 |
| Used in ransomware campaigns | Known |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NScored by NVD |
|---|
References
- CVE-2022-36537 on NVD
- CVE-2022-36537 in the CISA KEV catalog
- https://tracker.zkoss.org/browse/ZK-5150 (cited by CISA)
- CVE-2022-36537 on OSV
- https://tracker.zkoss.org/browse/ZK-5150 Issue Tracking, Patch, Vendor Advisory
- https://www.bleepingcomputer.com/news/security/cisa-warns-of-hackers-exploiting-zk-java-framework-rce-flaw/ Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-36537 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.