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CVE-2026-77702· NVD / CVE Program· CNA WPScan

Eventin < 4.1.24 - Unauthenticated Ticket Price Rewrite via order_token

The Eventin WordPress plugin before 4.1.24 does not prevent the token issued to a guest at checkout from being used to change that order's tickets afterwards, allowing unauthenticated users to replace a paid ticket with a free one and complete the order at no charge.

MediumCVSS 5.3 · v3.1—No exploit Fix available
Published
Sep 16, 2026
Updated
Sep 17, 2026
EPSS
0.3% · 21th percentile
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Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Affected systems

—

Versions reported by the vendor

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

  • Unknown Eventin

    • before 4.1.24affected · semver

Same product

unknown: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-13169Eventin < 4.1.21 - Contributor+ Arbitrary Event Modification, Deletion and Ownership Takeover via IDOR
    32Monitor
  • CVE-2026-13171Eventin < 4.1.20 - Unauthenticated Account Creation via Waiting List Endpoint
    32Monitor
  • CVE-2026-13178Eventin < 4.1.16 - Unauthenticated Payment Bypass via Order Status Manipulation
    30Monitor
  • CVE-2026-13174Eventin < 4.1.21 - Contributor+ Speaker Account Deletion via IDOR
    28Monitor
  • CVE-2026-13170Eventin < 4.1.20 - Editor+ Local File Inclusion via speaker_template Setting
    28Monitor
  • CVE-2026-84898Eventin < 4.1.21 - Contributor+ LFI via Event Layout Meta
    26Monitor

Remediation

Which version to upgrade to

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

Product / packageFixed versionSource
Unknown Eventin4.1.24Vendor (CNA)

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-2026-1317221 days apartEventin < 4.1.22 - Unauthenticated Unpublished Content Disclosure
    21Monitor
  • CVE-2026-7769421 days apartEventin < 4.1.19 - Unauthenticated Order Completion Without Payment via order_token
    21Monitor
  • CVE-2026-8490111 days apartEventin < 4.1.22 - Contributor+ Site Homepage Hijack and Event Taxonomy Manipulation via Missing Authorization
    19Monitor
  • CVE-2026-849070 days apartEventin < 4.1.24 - Unauthenticated Order and Attendee Status Reset via Payment REST Endpoint
    14Monitor
  • CVE-2026-849050 days apartEventin < 4.1.24 - Contributor+ User Creation via Speaker Creation
    10Monitor
  • CVE-2026-1317328 days apartEventin < 4.1.21 - Contributor+ User Role and Meta Modification via Speaker Creation
    10Monitor

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
none
Integrity
low · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-862 · Missing Authorization

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

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

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

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

All records