CVE-2020-29587: SimplCommerce 1.0.0-rc uses the Bootbox.js library, which allows creation of programmatic dialog boxes using B

Routine

MEDIUM 5.4DOWNGRADE

CVE-2020-29587 is a medium-severity flaw (CVSS 5.4) affecting simplcommerce. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SimplCommerce 1.0.0-rc uses the Bootbox.js library, which allows creation of programmatic dialog boxes using Bootstrap modals. The Bootbox.js library intentionally does not perform any sanitization of user input, which results in a DOM XSS, because it uses the jQuery .html() function to directly append the payload to a dialog.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-01-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: simplcommerce

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

Am I affected?

Timeline

2021-01-14 16:15 UTCPublished CVE record published
2026-06-17 03:11 UTCUpdated Record last modified

simplcommerce simplcommerce DOWNGRADE

Affected: 1.0.0 rc

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison simplcommerce sudo apt install simplcommerce=<VERSION_BEFORE_1.0.0> sudo apt-mark hold simplcommerce

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

dnf --showduplicates list simplcommerce sudo dnf downgrade simplcommerce-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add simplcommerce

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-2020-29587?

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

Is CVE-2020-29587 being exploited?

CVE-2020-29587 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-2020-29587 affect?

CVE-2020-29587 affects simplcommerce. Severity is medium (CVSS 5.4). SimplCommerce 1.0.0-rc uses the Bootbox.js library, which allows creation of programmatic dialog boxes using Bootstrap modals. The Bootbox.js library intentionally does not perform any sanitization of user input, which results in a DOM XSS,

How urgent is CVE-2020-29587?

Priority 37/100. Public exploit reference

Software pages

jQuery vulnerabilities · Bootstrap vulnerabilities

References

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