CVE-2026-49827

CRITICALPre-NVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This critical-severity CVE scores 9.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.9% (57th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

WebErpMesv2 is a Resource Management and Manufacturing execution system Web for industry. Versions 1.19 and prior allow any self-registered user to upload arbitrary PHP files through the HR Expense scan_file parameter, leading to Remote Code Execution. Combined with open registration (no invite required) and broken role middleware (CheckUserRole silently swallows RouteNotFoundException), this chain is effectively unauthenticated RCE against any default installation. The issue is patched in commit 5c54862fa044b363fd2be03d586750e81afd6818.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation0.9% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.9%
EPSS %ILE
57th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 13, 2026

Last Modified

September 18, 2026

Advisory Details (2)

Auto-updated Oct 9, 2026
Patch available. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

Unauthenticated RCE via Unrestricted File Upload in HR Expense scan_file (CWE-434) · Advisory · SMEWebify/WebErpMesv2 · GitHub

https://github.com/SMEWebify/WebErpMesv2/security/advisories/GHSA-chhq-7p67-2ff9
GitHub commit Patch Available

commit 5c54862fa044 (SMEWebify/WebErpMesv2)

Patch available: SMEWebify/WebErpMesv2 v2.0.0 (contains commit 5c54862fa044)

https://github.com/SMEWebify/WebErpMesv2/commit/5c54862fa044b363fd2be03d586750e81afd6818

Weakness Classification(3)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 48× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 109 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 9 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
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  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
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  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.9% · 57th percentile
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  23. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.9% · 57th percentile
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  1. 2026-09-29 04:15 UTCEG score recompute
  2. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.9% · 56th percentile
  3. 2026-09-27 16:52 UTCEG score recompute
  4. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.9% · 56th percentile
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  6. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.9% · 56th percentile
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  8. 2026-09-25 03:37 UTCEG score recompute
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  10. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.5% · 40th percentile
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  25. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  28. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  31. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.5% · 39th percentile
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  75. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.5% · 39th percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-49827?
CVE-2026-49827 is a critical-severity vulnerability; its CVE record was published on August 13, 2026. WebErpMesv2 is a Resource Management and Manufacturing execution system Web for industry. Versions 1.19 and prior allow any self-registered user to upload arbitrary PHP files through the HR Expense scan_file parameter, leading to Remote Code Execution. Combined with open registration (no invite…
When was the CVE record for CVE-2026-49827 published?
The CVE record for CVE-2026-49827 was published on August 13, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 18, 2026; the record at its source may have been updated since.
Is CVE-2026-49827 actively exploited?
CVE-2026-49827 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (57th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-49827?
CVE-2026-49827 has a CVSS base score of 9.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-49827?
A fix for CVE-2026-49827 is available: update to the fixed version the vendor names in its advisory.

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