Threats / ZK Framework / CVE-2022-36537
CVE-2022-36537
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-09-19
ZK Framework AuUploader vulnerability
ZK Framework AuUploader contains an unspecified vulnerability allowing attackers to retrieve files from the web context. The flaw affects multiple products and has been exploited in ransomware campaigns.
Verdict
Today item, not a backlog item.
An unauthenticated attacker can exploit this vulnerability to access sensitive files within the web application directory, potentially exposing configuration data, credentials, or other protected content that could facilitate further compromise.
CISA KEV Yes · 2023-02-274Ransomware use Flagged4EPSS 0.95397 (verify live)5Exploit Weaponized · public PoC6CVSS 7.5 (CISA)3CISA SSVC Exploitation: active · Automatable: yes · Impact: partial3
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Fully weaponized — public exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
8 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2023-02-27), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.95397 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) · Affected: ZK Framework, AuUploader. Confirm exact fixed builds in the vendor advisory.CVSS — CISA-assigned via the ADP container (CVE.org), version 3.1; the CNA left no metrics, so CISA's own score is used ahead of NVD.
Weakness (CWE)
Mapped to CWE-441 CWE-441.CWE assignment from the public NVD record (may be stale); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: yes · Technical Impact: partialCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 185 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
Public exploit available
Public exploit tooling is catalogued for this CVE (a public proof-of-concept / detection template). Catalog entries: nuclei template. We link the catalog page(s) only — no payload or code is hosted or restated here.Link, never host — the catalog page is the source; basicsecurity.net does not redistribute payloads.
WeaknessCWE-441 · CWE-441
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I identify the AuUploader servlet endpoint and craft requests to retrieve arbitrary files from the web context.
Business
Sensitive application files, configuration data, and credentials are exposed to unauthorized access.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I extract exposed credentials or authentication tokens from retrieved files to escalate privileges or move laterally.
Business
Attackers gain authenticated access to systems, enabling deployment of ransomware or data exfiltration.
3
Lateral reach — past segmentation narrative 3
Attacker
I use file access to map the application structure and identify additional vulnerabilities for exploitation.
Business
The attack surface expands, increasing risk of complete system compromise and operational disruption.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05
Coverage & confidence
— what we know, and what we don’tEstablished (cited)
Coverage gaps — stated, not hidden
Disclosure & credit2
Catalogued by mitreCNA
Credited with finding itNo finder is named in the public CVE record or the scanned vendor advisory — attribution scoped to the sources checked.
Found an error? Propose a correction.
A correction is a cited counter-claim — it must cite a source,
gets reviewed by a second human, and is never auto-applied. See the
correction convention and our identity
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