Threats / SimpleHelp / CVE-2024-57728
CVE-2024-57728
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-09-02
SimpleHelp vulnerability
SimpleHelp contains a path traversal vulnerability allowing authenticated administrators to upload arbitrary files via crafted zip archives, enabling remote code execution on the server.
Verdict
Today item, not a backlog item.
An authenticated admin can exploit zip slip to place malicious files anywhere on the filesystem and execute arbitrary code in the SimpleHelp server process context. Active exploitation and ransomware campaigns have been observed.
CISA KEV Yes · 2026-04-244Ransomware use Flagged4EPSS 0.06982 (verify live)5CVSS 7.2 (CISA)3CISA SSVC Exploitation: active · Automatable: no · Impact: total3
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
23 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 2026-04-24), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.06982 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 7.2 (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H) · Affected: SimpleHelp , SimpleHelp. 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-22 Path Traversal — weakness family: Path traversal / file.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: no · Technical Impact: totalCISA'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 464 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.
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 craft a zip file with path traversal sequences to escape the intended upload directory.
Business
Attacker gains ability to write files to arbitrary locations on the server.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I upload the malicious zip through the admin file upload function.
Business
Malicious payload is placed on the filesystem in a location where it will be executed.
3
Lateral reach — past segmentation narrative 3
Attacker
I trigger execution of the uploaded file to run arbitrary code as the SimpleHelp service user.
Business
Attacker achieves remote code execution with server privileges.
4
Data at risk — exfiltration narrative 4
Attacker
I use code execution to establish persistence and deploy ransomware or exfiltrate data.
Business
Systems are encrypted or data is stolen, causing operational disruption and financial loss.
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
npub1j7gt9ky7sfcrjn8jjee6693dkzvk4rahs0fk2suu7968dfns62zs3mqm3y.