CVE-2023-23756: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in advcomsy

Routine

MEDIUM 6.1DOWNGRADE

CVE-2023-23756 is a medium-severity flaw (CVSS 6.1) affecting onevote\!. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in advcomsys.com oneVote component for Joomla. It allows XSS Targeting Non-Script Elements.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-07-11
Last modified	2026-06-17

Publisher (CNA): Joomla! Project · Vendor: advcomsys

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

Am I affected?

Timeline

2023-07-11 20:15 UTCPublished CVE record published
2026-06-17 05:37 UTCUpdated Record last modified

advcomsys onevote\! DOWNGRADE

Affected: 1.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.7

1. Check installed version

apt-cache policy onevote || rpm -q onevote || onevote --version

2. No fixed release: DOWNGRADE to a release before 1.7 (Debian / Ubuntu)

apt-cache madison onevote sudo apt install onevote=<VERSION_BEFORE_1.7> sudo apt-mark hold onevote

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

dnf --showduplicates list onevote sudo dnf downgrade onevote-<VERSION_BEFORE_1.7> sudo dnf versionlock add onevote

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-2023-23756?

onevote\!: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-23756 being exploited?

CVE-2023-23756 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-2023-23756 affect?

CVE-2023-23756 affects onevote\!. Severity is medium (CVSS 6.1). Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in advcomsys.com oneVote component for Joomla. It allows XSS Targeting Non-Script Elements.

How urgent is CVE-2023-23756?

Priority 29/100. No elevated risk signals yet.

Software pages

Joomla vulnerabilities

References

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