CVE-2005-3520: Multiple cross-site scripting (XSS) vulnerabilities in MySource 2.14.0 allow remote attackers to inject arbitr

This month

MEDIUM 4.3DOWNGRADE

CVE-2005-3520 is a medium-severity flaw (CVSS 4.3) affecting mysource. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple cross-site scripting (XSS) vulnerabilities in MySource 2.14.0 allow remote attackers to inject arbitrary web script or HTML via (1) the target_url parameter in upgrade_in_progress_backend.php, (2) the stylesheet parameter in edit_table_cell_type_wysiwyg.php, and the bgcolor parameter in (3) insert_table.php, (4) edit_table_cell_props.php, (5) header.php, (6) edit_table_row_props.php, and (7) edit_table_props.php.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Published	2005-11-06
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: mysource

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

Am I affected?

Timeline

2005-11-06 11:03 UTCPublished CVE record published
2026-06-16 22:17 UTCUpdated Record last modified

mysource mysource DOWNGRADE

Affected: 2.14.0 · 2.14.0rc2

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.14.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.14.0 (Debian / Ubuntu)

apt-cache madison mysource sudo apt install mysource=<VERSION_BEFORE_2.14.0> sudo apt-mark hold mysource

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

dnf --showduplicates list mysource sudo dnf downgrade mysource-<VERSION_BEFORE_2.14.0> sudo dnf versionlock add mysource

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: MySource 2.14 - 'edit_table_cell_props.php?bgcolor' Cross-Site Scripting
Exploit-DB: MySource 2.14 - 'edit_table_cell_type_wysiwyg.php?Stylesheet' Cross-Site Scripting
Exploit-DB: MySource 2.14 - 'edit_table_props.php?bgcolor' Cross-Site Scripting
Exploit-DB: MySource 2.14 - 'edit_table_row_props.php?bgcolor' Cross-Site Scripting
Exploit-DB: MySource 2.14 - 'header.php?bgcolor' Cross-Site Scripting
Exploit-DB: MySource 2.14 - 'insert_table.php?bgcolor' Cross-Site Scripting
Exploit-DB: MySource 2.14 - 'upgrade_in_progress_backend.php?target_url' 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-2005-3520?

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

Is CVE-2005-3520 being exploited?

CVE-2005-3520 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-2005-3520 affect?

CVE-2005-3520 affects mysource. Severity is medium (CVSS 4.3). Multiple cross-site scripting (XSS) vulnerabilities in MySource 2.14.0 allow remote attackers to inject arbitrary web script or HTML via (1) the target_url parameter in upgrade_in_progress_backend.php, (2) the stylesheet parameter in edit_t

How urgent is CVE-2005-3520?

Priority 42/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2005-3519 HIGH 7.5 DOWNGRADE Multiple PHP file inclusion vulnerabilities in MySource 2.14.0 allow remote attackers to execute arbitrary PHP

References

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