CVE-2021-25791: Multiple stored cross site scripting (XSS) vulnerabilities in the "Update Profile" module of Online Doctor App

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MEDIUM 5.4DOWNGRADE

CVE-2021-25791 is a medium-severity flaw (CVSS 5.4) affecting online doctor appointment system php full source code. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple stored cross site scripting (XSS) vulnerabilities in the "Update Profile" module of Online Doctor Appointment System 1.0 allows authenticated attackers to execute arbitrary web scripts or HTML via crafted payloads in the First Name, Last Name, and Address text fields.

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	2.6% (top 15%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-07-23
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: online doctor appointment system php full source code project

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

Am I affected?

Timeline

2021-07-23 18:15 UTCPublished CVE record published
2026-06-17 03:42 UTCUpdated Record last modified

online doctor appointment system php full source code project online doctor appointment system php full source code DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

apt-cache policy online-doctor-appointment-system-php-full-source-code || rpm -q online-doctor-appointment-system-php-full-source-code || online-doctor-appointment-system-php-full-source-code --version

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison online-doctor-appointment-system-php-full-source-code sudo apt install online-doctor-appointment-system-php-full-source-code=<VERSION_BEFORE_1.0> sudo apt-mark hold online-doctor-appointment-system-php-full-source-code

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

dnf --showduplicates list online-doctor-appointment-system-php-full-source-code sudo dnf downgrade online-doctor-appointment-system-php-full-source-code-<VERSION_BEFORE_1.0> sudo dnf versionlock add online-doctor-appointment-system-php-full-source-code

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: Online Doctor Appointment System 1.0 - 'Multiple' Stored XSS

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-2021-25791?

online doctor appointment system php full source code: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-25791 being exploited?

CVE-2021-25791 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-2021-25791 affect?

CVE-2021-25791 affects online doctor appointment system php full source code. Severity is medium (CVSS 5.4). Multiple stored cross site scripting (XSS) vulnerabilities in the "Update Profile" module of Online Doctor Appointment System 1.0 allows authenticated attackers to execute arbitrary web scripts or HTML via crafted payloads in the First Name

How urgent is CVE-2021-25791?

Priority 45/100. Public exploit reference

Software pages

PHP vulnerabilities

References

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