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CVE-2022-36537

ZK Framework AuUploader Unspecified

7.5 HIGHActively exploited (CISA KEV)Used in ransomwareEPSS 95.4%
  1. Published26 Aug 2022
  2. Added to CISA KEV27 Feb 2023
  3. Remediation due20 Mar 2023
Actively exploited (CISA KEV)

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.

Added to KEV: 27 Feb 2023Federal remediation due: 20 Mar 2023Used in ransomware

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

Zkoss Zk Framework≥ 9.0.0 < 9.0.1.3 · ≥ 9.5.0 < 9.5.1.3 · ≥ 9.6.0 < 9.6.2 · < 8.6.4.2

Remediation

Fixed in
Zkoss Zk Framework≥ 9.0.1.3

References

Frequently asked

Is CVE-2022-36537 being actively exploited?

Yes. CVE-2022-36537 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 27 Feb 2023. It has been used in ransomware campaigns.

How severe is CVE-2022-36537?

CVE-2022-36537 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 95.4% probability of exploitation.

Which products are affected by CVE-2022-36537?

Affected products include Zkoss Zk Framework.

How do I fix CVE-2022-36537?

Upgrade affected software to a fixed version, for example Zkoss Zk Framework 9.0.1.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2022-36537 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.