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CVE-2026-1734· NVD / CVE Program· CNA VulDB

Zhong Bang CRMEB crontab Endpoint CrontabController.php authorization

A security flaw has been discovered in Zhong Bang CRMEB up to 5.6.3. This vulnerability affects unknown code of the file crmeb/app/api/controller/v1/CrontabController.php of the component crontab Endpoint. The manipulation results in missing authorization. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

MediumCVSS 5.5 · v4.0—No exploit No fix recorded
Published
Feb 1, 2026
Updated
Jun 17, 2026
EPSS
0.5% · 43th percentile
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Report tools

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Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
proof of concept
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · VulDB
6.9
NVD has not scored this yet; the score shown is the CNA’s.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
crmebcrmeb

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • crmeb crmebup to 5.6.3 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (VulDB). Independent of NVD's CPE analysis and usually ahead of it.

  • Zhong Bang CRMEB

    • 5.6.0, 5.6.1, 5.6.2, 5.6.3affected

Same product

crmeb: all records

Other highest-scoring records for the same primary product.

  • CVE-2020-21787CRMEB 3.1.0+ is vulnerable to File Upload Getshell via /crmeb/crmeb/services/UploadService.php.
    40Plan
  • CVE-2020-25466A SSRF vulnerability exists in the downloadimage interface of CRMEB 3.0, which can remotely download arbitrary files on the server and remot
    40Plan
  • CVE-2025-25763crmeb CRMEB-KY v5.4.0 and before has a SQL Injection vulnerability at getRead() in /system/SystemDatabackupServices.php
    39Monitor
  • CVE-2023-3234Zhong Bang CRMEB PublicController.php put_image deserialization
    39Monitor
  • CVE-2023-3232Zhong Bang CRMEB Image Upload app_auth deserialization
    39Monitor
  • CVE-2023-30185CRMEB v4.4 to v4.6 was discovered to contain an arbitrary file upload vulnerability via the component \attachment\SystemAttachmentServices.p
    39Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-85212214 days apartCRMEB through 6.0.0 Missing Authorization via Inert verifyAuth Role Check
    34Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
Integrity
Availability
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
X

Weakness class (CWE)

CWE-862 · Missing Authorization

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records