CVE-2021-26935: In WoWonder < 3.1, remote attackers can gain access to the database by exploiting a requests.php?f=search-my-f

Q: How do I fix CVE-2021-26935?

wowonder: upgrade to 3.1. Exact commands for each OS are on this page.

Q: Is CVE-2021-26935 being exploited?

CVE-2021-26935 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-26935 affect?

CVE-2021-26935 affects wowonder. Severity is high (CVSS 7.5). In WoWonder < 3.1, remote attackers can gain access to the database by exploiting a requests.php?f=search-my-followers SQL Injection vulnerability via the event_id parameter.

Q: How urgent is CVE-2021-26935?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2021-26935 is a high-severity flaw (CVSS 7.5) affecting wowonder. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In WoWonder < 3.1, remote attackers can gain access to the database by exploiting a requests.php?f=search-my-followers SQL Injection vulnerability via the event_id parameter.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.3% (top 17%)
CISA exploited list	No
Weakness	CWE-89
Published	2021-03-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: wowonder

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

Am I affected?

Timeline

2021-03-18 15:15 UTCPublished CVE record published
2026-06-17 03:44 UTCUpdated Record last modified

wowonder wowonder UPGRADE

Affected: < 3.1

Fixed in: 3.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wowonder

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wowonder

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2021-26935?

wowonder: upgrade to 3.1. Exact commands for each OS are on this page.

Is CVE-2021-26935 being exploited?

CVE-2021-26935 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-2021-26935 affect?

CVE-2021-26935 affects wowonder. Severity is high (CVSS 7.5). In WoWonder < 3.1, remote attackers can gain access to the database by exploiting a requests.php?f=search-my-followers SQL Injection vulnerability via the event_id parameter.

How urgent is CVE-2021-26935?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

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References

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