CVE-2008-5654: SQL injection vulnerability in the loginADP function in ajaxp.php in MyioSoft EasyCalendar 4.0 allows remote a

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HIGH 7.5DOWNGRADE

CVE-2008-5654 is a high-severity flaw (CVSS 7.5) affecting easycalendar. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SQL injection vulnerability in the loginADP function in ajaxp.php in MyioSoft EasyCalendar 4.0 allows remote attackers to execute arbitrary SQL commands via the rsargs parameter, as reachable through the username parameter, a different vector than CVE-2008-1344. NOTE: some of these details are obtained from third party information.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-89
Published	2008-12-17
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: myiosoft

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2008-12-17 18:30 UTCPublished CVE record published
2026-06-16 23:00 UTCUpdated Record last modified

myiosoft easycalendar DOWNGRADE

Affected: 4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.0 (Debian / Ubuntu)

apt-cache madison easycalendar sudo apt install easycalendar=<VERSION_BEFORE_4.0> sudo apt-mark hold easycalendar

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

dnf --showduplicates list easycalendar sudo dnf downgrade easycalendar-<VERSION_BEFORE_4.0> sudo dnf versionlock add easycalendar

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.

Exploit-DB: MyioSoft EasyCalendar - Authentication Bypass

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-2008-5654?

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

Is CVE-2008-5654 being exploited?

CVE-2008-5654 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-2008-5654 affect?

CVE-2008-5654 affects easycalendar. Severity is high (CVSS 7.5). SQL injection vulnerability in the loginADP function in ajaxp.php in MyioSoft EasyCalendar 4.0 allows remote attackers to execute arbitrary SQL commands via the rsargs parameter, as reachable through the username parameter, a different vect

How urgent is CVE-2008-5654?

Priority 47/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2008-1347 MEDIUM 4.3 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in staticpages/easygallery/index.php in MyioSoft EasyGalle
CVE-2008-1346 HIGH 7.5 DOWNGRADE SQL injection vulnerability in staticpages/easygallery/index.php in MyioSoft EasyGallery 5.0tr and earlier all
CVE-2008-1345 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in plugins/calendar/calendar_backend.php in MyioSoft EasyCalendar 4.0
CVE-2008-1344 HIGH 7.5 DOWNGRADE Multiple SQL injection vulnerabilities in MyioSoft EasyCalendar 4.0tr and earlier allow remote attackers to ex

References

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