CVE-2021-20848

FAUCET Score

CVE-2021-20848 describes a cross-site scripting (XSS) vulnerability in rwtxt versions prior to v1.8.6, allowing a remote attacker to inject arbitrary scripts. This medium-severity vulnerability (CVSS 6.1) requires user interaction and a network attack vector, potentially leading to limited confidentiality and integrity impacts. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 1.8.6CPE matchmatch criteria	cpe:2.3:a:rwtxt_project:rwtxt::::::::

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

Exploitability Score

2.8

Impact Score

2.7

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.88%

Probability of exploitation in next 30 days

EPSS Percentile

55.3%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0088 is in the 66th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

gopatch availablevia ghsa

Product: github.com/schollz/rwtxtFixed in: 1.8.6

Vendor Advisories (1)

goGHSA-458f-26r3-x2c3medium

Cross-site Scripting in github.com/schollz/rwtxt

Nov 29, 2021

References

github.com / schollz/rwtxt

ProductThird Party Advisory

jvn.jp / en/jp/JVN22515597/index.html

Third Party Advisory