NVD / CVE Program· CNA mitre

CVE-2020-15504: A SQL injection vulnerability in the user and admin web interfaces of Sophos XG Firewall v18.0 MR1 and older potentially allows an attacker

Noroxi assessment

Priority: Plan (action score 40/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 2.1% (FIRST EPSS); higher than 81.9% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to the record, no fixed version is available yet.

Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A SQL injection vulnerability in the user and admin web interfaces of Sophos XG Firewall v18.0 MR1 and older potentially allows an attacker to run arbitrary code remotely. The fix is built into the re-release of XG Firewall v18 MR-1 (named MR-1-Build396) and the v17.5 MR13 release. All other versions >= 17.0 have received a hotfix.

CriticalCVSS 9.8 · v3.1—No exploit No fix recorded

Published: Jul 10, 2020
Updated: Jun 16, 2026
EPSS: 2.1% · 81th percentile
CWE: CWE-89

Report tools

JSON

Action score

Plan

Add it to your regular patch cycle.

CVSS: 39 / 40 · 9.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 2.1%

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Running WordPress? Scan your site free with WP Lens

Is your version affected? Check it

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
sophos	xg firewall firmware	cpe:2.3:o:sophos:xg_firewall_firmware

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

sophos xg firewall firmware17.0 and later · up to 17.5 inclusive
sophos xg firewall firmware17.5
sophos xg firewall firmware18.0

Same product

sophos: all records

Other highest-scoring records for the same primary product.

CVE-2020-15069Sophos XG Firewall 17.x through v17.5 MR12 allows a Buffer Overflow and remote code execution via the HTTP/S Bookmarks feature for clientlesKEV
72This week
CVE-2020-17352Two OS command injection vulnerabilities in the User Portal of Sophos XG Firewall through 2020-08-05 potentially allow an authenticated atta
36Monitor
CVE-2022-3713A code injection vulnerability allows adjacent attackers to execute code in the Wifi controller of Sophos Firewall releases older than versi
35Monitor

Published before and after this one in the same product

Later →CVE-2022-3226Dec 1, 2022 · An OS command injection vulnerability allows admins to execute code via SSL VPN configuration uploads in Sophos Firewall releases older than
29Monitor
Later →CVE-2022-3696Dec 1, 2022 · A post-auth code injection vulnerability allows admins to execute code in Webadmin of Sophos Firewall releases older than version 19.5 GA.
28Monitor
Later →CVE-2022-3709Dec 1, 2022 · A stored XSS vulnerability allows admin to super-admin privilege escalation in the Webadmin import group wizard of Sophos Firewall releases
33Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

SophosBugcrowd · paid · up to $80,000

The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-89 · Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

The query text is built by concatenating user input. The database cannot tell where the data ends and the command begins.

The bug in code

The whole CWE-89 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const owner = req.query.owner;
2const rows = await db.query(
3  "SELECT * FROM files WHERE owner = '" + owner + "'"
4);

Fixed

1const owner = req.query.owner;
2const rows = await db.query(
3  "SELECT * FROM files WHERE owner = $1",
4  [owner]
5);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

community.sophos.com/b/security-blog/posts/advisory-resolved-rce-via-sqli-cve-2020-15504

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records