CVE-2023-42034: Visualware MyConnection Server doRTAAccessCTConfig Cross-Site Scripting Authentication Bypass Vulnerability

This month

HIGH 8.8DOWNGRADE

CVE-2023-42034 is a high-severity flaw (CVSS 8.8) affecting myconnection server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Visualware MyConnection Server doRTAAccessCTConfig Cross-Site Scripting Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Visualware MyConnection Server. Minimal user interaction is required to exploit this vulnerability. The specific flaw exists within the doRTAAccessCTConfig method. The issue results from the lack of proper validation of user-supplied data, whi

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Weakness	CWE-79
Published	2024-05-03
Last modified	2026-06-17

Publisher (CNA): Zero Day Initiative · Vendor: visualware

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-05-03 03:15 UTCPublished CVE record published
2026-06-17 06:23 UTCUpdated Record last modified

visualware myconnection server DOWNGRADE

Affected: 11.3c

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.3c

1. Check installed version

apt-cache policy myconnection-server || rpm -q myconnection-server || myconnection-server --version

2. No fixed release: DOWNGRADE to a release before 11.3c (Debian / Ubuntu)

apt-cache madison myconnection-server sudo apt install myconnection-server=<VERSION_BEFORE_11.3c> sudo apt-mark hold myconnection-server

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list myconnection-server sudo dnf downgrade myconnection-server-<VERSION_BEFORE_11.3c> sudo dnf versionlock add myconnection-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-42034?

myconnection server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-42034 being exploited?

CVE-2023-42034 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-42034 affect?

CVE-2023-42034 affects myconnection server. Severity is high (CVSS 8.8). Visualware MyConnection Server doRTAAccessCTConfig Cross-Site Scripting Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Visualware MyConnection Server. Mi

How urgent is CVE-2023-42034?

Priority 49/100. High severity

Related CVEs

CVE-2023-42035 MEDIUM 6.5 DOWNGRADE Visualware MyConnection Server doIForward XML External Entity Processing Information Disclosure Vulnerability
CVE-2023-42033 HIGH 7.2 DOWNGRADE Visualware MyConnection Server doPostUploadfiles Directory Traversal Remote Code Execution Vulnerability
CVE-2023-42032 HIGH 7.5 DOWNGRADE Visualware MyConnection Server doRTAAccessUPass Exposed Dangerous Method Information Disclosure Vulnerability

References

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