CVE-2022-36537 kev+ ransomware in the critical feed json
ZK Framework vulnerable to malicious POST
published 2022-08-26 4 y ago modified 2026-06-17 4 mo ago also GHSA-6278-2q4m-cmf3 , EUVD-2022-6491
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Exploited
- added 2023-02-27, used in ransomware
- epss
- 95.4%
- EPSS 95.4% chance of exploitation in 30 days, percentile 99.8%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
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.
Patch / fix
cisa required action Apply updates per vendor instructions.
- maven org.zkoss.zk:zk 8.6.4.2, 9.0.1.3, 9.5.1.4, 9.6.0.2, 9.6.2
- zkoss zk_framework 8.6.4.2, 9.0.1.3, 9.5.1.3, 9.6.2
- github.com/zkoss/zk@92a29aa commit
- tracker.zkoss.org/browse/ZK-5150 advisory
Timeline
- Published
- Added to CISA KEV
- CISA patch deadline
- CISA SSVC: exploitation active
Known exploited
- Added
- 3 y ago
- Patch by
- 2023-03-20 (3 y ago)
- Ransomware
- Known to be used in ransomware campaigns
- Required action
- Apply updates per vendor instructions.
- Vendor, product
- ZK Framework, AuUploader
- CISA name
- ZK Framework AuUploader Unspecified Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
95.40% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template ZK Framework - Information Disclosure nuclei detection template
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.zkoss.zk:zk | <8.6.4.2 >=9.0.0.0, <9.0.1.3 >=9.5.0.0, <9.5.1.4 >=9.6.0.0, <9.6.0.2 >=9.6.1, <9.6.2 |
8.6.4.2 9.0.1.3 9.5.1.4 9.6.0.2 9.6.2 |
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
tracker.zkoss.org
/browse/ZK-5150
web, issue-tracking, patch, vendor-advisory
-
github.com
/zkoss/zk/commit/92a29aa9b1daf1fd2d9d188cb6545f0441d54e84
web
-
bleepingcomputer.com
/news/security/cisa-warns-of-hackers-exploiting-zk-java-framework-rce-flaw/
third-party-advisory
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-36537
government-resource, web, us-government-resource
-
nvd.nist.gov
/vuln/detail/CVE-2022-36537
advisory
-
github.com
/zkoss/zk
package
-
bleepingcomputer.com
/news/security/cisa-warns-of-hackers-exploiting-zk-java-framework-rce-flaw
web
Sources
- CVE List CVE-2022-36537
- GitHub Advisory GHSA-6278-2q4m-cmf3
- NVD CVE-2022-36537
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.