# CVE-2026-15918: VikAppointments – Services Booking Calendar <= 1.2.19 - Unauthenticated SQL Injection

> Unauthenticated attackers can inject SQL via the reviews sorting parameter to read sensitive database information, including user credentials.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Aug 2026
- **Updated:** 5 Aug 2026
- **Also known as:** GHSA-cg6f-7m34-r225

## What is CVE-2026-15918?

CVE-2026-15918 is a high-severity SQL injection vulnerability in e4jvikwp VikAppointments Services Booking Calendar, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

VikAppointments Service Booking Calendar wordpress plugin is vulnerable to unauthenticated SQL injection due to one of the parameters that controls how the public reviews list is sorted is taken from the incoming request and used to build a database query without proper validation or sanitization. Because this value is placed directly into the query, an attacker who is not logged in can inject arbitrary SQL through a normal booking page and read data from the site's database — including sensitive information such as WordPress user credentials. No authentication or special privileges are required

Weakness: CWE-89 (Improper Neutralization of Special Elements used in an SQL Command)

## Which versions are affected by CVE-2026-15918?


## How do I fix CVE-2026-15918?

No fix has been published for CVE-2026-15918 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-15918 being exploited?

There is no known exploitation of CVE-2026-15918 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-15918 and fix it if it is affected.

What it is: CVE-2026-15918 is a high-severity SQL injection vulnerability in e4jvikwp VikAppointments Services Booking Calendar, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-15918 in the wild and no public exploit code.

Affected product: e4jvikwp VikAppointments Services Booking Calendar. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-15918/ (Markdown: https://insights.sbomify.com/CVE-2026-15918/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-15918
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-15918
- OSV: https://osv.dev/vulnerability/CVE-2026-15918

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-15918/
Summaries are generated and may contain mistakes; the official description above is the record.