CVE-2022-42749: CandidATS version 3.0.0 on 'page' of the 'ajax.php' resource, allows an external attacker to steal the cookie

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MEDIUM 6.1DOWNGRADE

CVE-2022-42749 is a medium-severity flaw (CVSS 6.1) affecting candidats. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CandidATS version 3.0.0 on 'page' of the 'ajax.php' resource, allows an external attacker to steal the cookie of arbitrary users. This is possible because the application application does not properly validate user input against XSS attacks.

Why this priority

Public exploit reference

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	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-11-03
Last modified	2026-06-17

Publisher (CNA): Fluid Attacks · Vendor: auieo

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

Am I affected?

Timeline

2022-11-03 20:15 UTCPublished CVE record published
2026-06-17 05:05 UTCUpdated Record last modified

auieo candidats DOWNGRADE

Affected: 3.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.0.0 (Debian / Ubuntu)

apt-cache madison candidats sudo apt install candidats=<VERSION_BEFORE_3.0.0> sudo apt-mark hold candidats

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

dnf --showduplicates list candidats sudo dnf downgrade candidats-<VERSION_BEFORE_3.0.0> sudo dnf versionlock add candidats

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: CandidATS 3.0.0 - Cross-Site Scripting

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-2022-42749?

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

Is CVE-2022-42749 being exploited?

CVE-2022-42749 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-2022-42749 affect?

CVE-2022-42749 affects candidats. Severity is medium (CVSS 6.1). CandidATS version 3.0.0 on 'page' of the 'ajax.php' resource, allows an external attacker to steal the cookie of arbitrary users. This is possible because the application application does not properly validate user input against XSS attacks

How urgent is CVE-2022-42749?

Priority 43/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2022-42751 HIGH 8.8 DOWNGRADE CandidATS version 3.0.0 allows an external attacker to elevate privileges in the application
CVE-2022-42750 HIGH 8.8 DOWNGRADE CandidATS version 3.0.0 allows an external attacker to steal the cookie of arbitrary users
CVE-2022-42748 MEDIUM 6.1 DOWNGRADE CandidATS version 3.0.0 on 'sortDirection' of the 'ajax.php' resource, allows an external attacker to steal th
CVE-2022-42747 MEDIUM 6.1 DOWNGRADE CandidATS version 3.0.0 on 'sortBy' of the 'ajax.php' resource, allows an external attacker to steal the cooki
CVE-2022-42746 MEDIUM 6.1 DOWNGRADE CandidATS version 3.0.0 on 'indexFile' of the 'ajax.php' resource, allows an external attacker to steal the co

References

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