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CVE-2024-0237· NVD / CVE Program· CNA WPScan

EventON (Free < 2.2.9, Premium <= 4.5.8) - Unauthenticated Virtual Event Settings Update

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.41% (FIRST EPSS).
  • 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.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: Unknown EventON 2.2.7; Unknown EventON Premium 4.5.8.

Low priority for now. Upgrade to Unknown EventON 2.2.7; Unknown EventON Premium 4.5.8 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

The EventON WordPress plugin through 4.5.8, EventON WordPress plugin before 2.2.7 do not have authorisation in some AJAX actions, allowing unauthenticated users to update virtual events settings, such as meeting URL, moderator, access details etc

MediumCVSS 5.3 · v3.1—No exploit Fix available
Published
Jan 16, 2024
Updated
Jun 17, 2026
EPSS
0.4% · 33th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Is EventON – Events Calendar on your site?

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Is EventON – Events Calendar on your site?

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  • when exploit code appears or is weaponized
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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
myeventoneventon

Affected versions

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

  • myeventon eventonbefore 2.2.7
  • myeventon eventon4.0 and later · before 4.5.5

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 EventON

    • before 2.2.7affected · semver

  • Unknown EventON Premium

    • before 4.5.8affected · semver

Same product

myeventon: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-2796EventON < 2.1.2 - Unauthenticated Event Access
    34Monitor
  • CVE-2024-0235EventON (Free < 2.2.8, Premium < 4.5.5) - Unauthenticated Email Address Disclosure
    32Monitor
  • CVE-2020-29395The EventON plugin through 3.0.5 for WordPress allows addons/?q= XSS via the search field.
    28Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2024-0233Jan 16, 2024 · EventON (Free < 2.2.8, Premium < 4.5.5) - Reflected XSS
    24Monitor
  • ← EarlierCVE-2024-0236Jan 16, 2024 · EventON (Free < 2.2.8, Premium < 4.5.5) - Unauthenticated Virtual Event Password Disclosure
    21Monitor
  • Later →CVE-2024-0238Jan 16, 2024 · EventON (Free < 2.2.8, Premium < 4.5.6) - Unauthenticated Arbitrary Post Metadata Update
    24Monitor

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 EventON2.2.7Vendor (CNA)
Unknown EventON Premium4.5.8Vendor (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-2023-2796190 days apartEventON < 2.1.2 - Unauthenticated Event Access
    34Monitor
  • CVE-2024-02350 days apartEventON (Free < 2.2.8, Premium < 4.5.5) - Unauthenticated Email Address Disclosure
    32Monitor
  • CVE-2023-61586 days apartEventON - WordPress Virtual Event Calendar Plugin Pro <= 4.5.4 & Free <= 2.2.7 - Missing Authorization to Arbitrary Post Meta Update via evo_eventpost_update_me
    26Monitor
  • CVE-2024-02360 days apartEventON (Free < 2.2.8, Premium < 4.5.5) - Unauthenticated Virtual Event Password Disclosure
    21Monitor
  • CVE-2025-3527487 days apartEventON - WordPress Virtual Event Calendar Plugin <= 4.9.6 - Missing Authorization to Authenticated (Subscriber+) Stored Cross-Site Scripting
    21Monitor

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-primary

Attack context

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

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